One-Pan Ground Beef and Rice Casserole for Busy Weeknights

Some evenings call for a dinner that practically makes itself, leaving you with more time for homework help or simply collapsing on the sofa. This Simple Ground Beef and Rice Casserole is my go-to for those nights, delivering a hearty, satisfying meal from a single dish with hardly any fuss.

Recipe Overview

• Prep Time: 10 minutes
• Cook Time: 35 minutes
• Total Time: 45 minutes
• Servings: 6
• Difficulty: Easy

Why You’ll Love This Simple Ground Beef and Rice Casserole

• One-Dish Wonder: Everything cooks together in a single baking dish, meaning you have fewer pots and pans to wash up afterwards.
• Pantry-Friendly: You most likely have the ingredients on hand already – rice, tinned tomatoes, and mince are staples in my kitchen.
• Freezer-Friendly: This casserole freezes beautifully, so you can make a double batch and have a ready-made dinner for another busy night.
• Customisable: It’s a blank canvas for whatever vegetables or spices you need to use up. I often throw in a handful of frozen peas or sweetcorn.
• Kid-Approved: The mild, savoury flavour is gentle enough for little palates, and the soft texture is easy for them to eat. I make this at least once a week – it’s become a family favourite.

Simple Ground Beef and Rice Casserole

15 min prep  ·  40 min cook  ·  4 servings

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Ingredients You’ll Need

• 500g lean beef mince
• 1 large onion, finely chopped
• 2 cloves garlic, minced
• 1 red bell pepper, diced
• 400g tinned chopped tomatoes
• 2 tablespoons tomato purée
• 200g long-grain white rice
• 500ml beef stock
• 1 teaspoon dried oregano
• 1 teaspoon smoked paprika
• Salt and freshly ground black pepper, to taste
• 100g grated cheddar cheese (optional, for topping)
• 2 tablespoons olive oil

Tip: For the best texture, use a long-grain rice like basmati or jasmine – they stay separate and fluffy rather than turning mushy during baking.

How to Make Simple Ground Beef and Rice Casserole

1. Preheat and prepare: Preheat your oven to 180°C (350°F). While it heats, lightly grease a 9×13 inch baking dish with a little olive oil so nothing sticks.
2. Brown the mince: Heat the olive oil in a large frying pan over a medium-high heat. Add the beef mince and cook, breaking it up with a wooden spoon, until it’s browned all over – you’ll hear a satisfying sizzle and see the colour change from pink to a rich brown. This takes about 5-6 minutes.
3. Sweat the vegetables: Add the chopped onion, diced red pepper, and minced garlic to the pan. Stir everything together and cook for another 3-4 minutes until the onion turns translucent and the pepper softens – the kitchen will smell wonderfully aromatic at this point.
4. Build the sauce: Stir in the tomato purée, dried oregano, and smoked paprika. Cook for one minute, letting the spices toast slightly. Then pour in the tinned chopped tomatoes and beef stock. Bring the mixture to a gentle simmer – you’ll see small bubbles breaking the surface – and season with salt and pepper.
5. Add the rice: Pour the uncooked rice into the pan and stir it thoroughly through the sauce. Make sure every grain is coated. The mixture will look quite liquidy, but that’s exactly what you want – the rice will absorb the liquid as it bakes.
6. Transfer and bake: Tip the entire mixture into your prepared baking dish, spreading it into an even layer. If using, sprinkle the grated cheddar cheese evenly over the top. Cover the dish tightly with aluminium foil and bake for 30 minutes. After 30 minutes, remove the foil and bake for a further 5-10 minutes – the top should be lightly golden and the rice tender when you press a fork into it.
7. Rest and serve: Remove the dish from the oven and let it rest, uncovered, for 5 minutes. This resting time allows the rice to finish absorbing any remaining liquid and the flavours to meld together. The casserole will be steaming hot and smell deeply savoury – serve it straight from the dish.

Tips From My Kitchen

• Don’t rinse the rice: Unlike when cooking rice on the hob, here you want the starch from the rice to help thicken the casserole. Rinsing washes that starch away, leaving you with a thinner, more watery sauce.
• Use lean mince for less grease: A higher-fat mince releases more fat during cooking, which can sit on top of the casserole as an unappealing layer. I always use lean beef mince (5% or 10% fat) for a cleaner result. If you only have fatty mince, drain off the excess fat after browning.
• Season in layers: Add a pinch of salt when browning the mince, another when you add the vegetables, and a final adjustment just before baking. Seasoning in stages builds a deeper, more rounded flavour throughout the dish.
• Cover tightly with foil: The foil traps steam, which is essential for cooking the rice evenly. If the foil isn’t sealed properly, steam escapes, the rice dries out, and it may end up crunchy. Press the foil down firmly around the edges of the dish.
• Make ahead for busy weeks: You can assemble the entire casserole (without the cheese topping) up to 24 hours in advance. Keep it covered in the fridge, then add the cheese just before baking. You may need to add 5-10 minutes to the baking time if it’s going in cold from the fridge.

Equipment You’ll Need

• 9×13 inch baking dish
• Aluminium foil
• Large frying pan or skillet
• Wooden spoon or spatula
• Sharp knife
• Chopping board

Common Mistakes to Avoid

• Overcrowding the pan: If you try to brown all the mince at once in a pan that’s too small, it will steam rather than brown. This means you miss out on the deep, savoury flavour that only comes from browning. Cook the mince in two batches if your pan isn’t large enough – it’s worth the extra minute.
• Wrong temperature: Baking at too high a temperature can cause the liquid to evaporate before the rice is fully cooked, leaving you with crunchy grains. Stick to 180°C (350°F) – it’s the sweet spot for gentle, even cooking. Too low, and the rice might become mushy from overcooking.
• Skipping the rest time: I know it’s tempting to dive straight in, but resting the casserole for 5 minutes after baking is crucial. It allows the rice to absorb any final bits of liquid and the casserole to set slightly, so it holds its shape when you serve it rather than turning into a soupy mess on the plate.

Delicious Variations to Try

• Spicy Version: Add one finely chopped red chilli (seeds removed if you prefer less heat) along with the onion, or stir in a teaspoon of chilli flakes with the spices. A dash of hot sauce stirred through before baking also works a treat.
• Vegetarian/Vegan Option: Swap the beef mince for 400g of cooked lentils or a plant-based mince alternative. Use vegetable stock instead of beef stock, and either omit the cheese or use a dairy-free grated alternative. The cooking time remains the same.
• Different Protein: This recipe works just as well with turkey mince or chicken mince. Turkey is leaner, so you might want to add an extra tablespoon of olive oil to keep things moist. For a non-mince option, shred leftover roast chicken and stir it in just before baking.

What to Serve With Simple Ground Beef and Rice Casserole

• A simple green salad with a lemon vinaigrette – the freshness cuts through the richness of the casserole.
• Steamed green beans or broccoli, lightly seasoned with salt and a squeeze of lemon juice.
• Warm crusty bread or garlic bread to mop up any remaining sauce from the dish.
• A dollop of plain yoghurt or soured cream on top for a cool, creamy contrast.

Still hungry for ideas? You might also love Hobo Casserole With Ground Beef Potatoes Quick Delicious Fitandhealthier, Beef And Noodle Casserole from our sister kitchens.

Frequently Asked Questions

Simple Ground Beef and Rice Casserole

A hearty, one-pan casserole with seasoned ground beef, rice, and vegetables, baked with a golden cheese topping.

Print Recipe
Pin Recipe

Prep Time 15 minutes mins

Cook Time 40 minutes mins

Total Time 55 minutes mins

Servings: 4 servings

Course: Main Course

Cuisine: American

Calories: 350

Ingredients
Method
Notes

Ingredients

  

• 500 g lean beef mince
• 1 large onion finely chopped
• 2 cloves garlic minced
• 1 red bell pepper diced
• 400 g tinned chopped tomatoes
• 2 tablespoons tomato purée
• 200 g long-grain white rice
• 500 ml beef stock
• 1 teaspoon dried oregano
• 1 teaspoon smoked paprika
• Salt and freshly ground black pepper to taste
• 100 g grated cheddar cheese optional, for topping
• 2 tablespoons olive oil

Method

 

1. Preheat and prepare: Preheat your oven to 180°C (350°F). While it heats, lightly grease a 9×13 inch baking dish with a little olive oil so nothing sticks.
2. Brown the mince: Heat the olive oil in a large frying pan over a medium-high heat. Add the beef mince and cook, breaking it up with a wooden spoon, until it’s browned all over – you’ll hear a satisfying sizzle and see the colour change from pink to a rich brown. This takes about 5-6 minutes.
3. Sweat the vegetables: Add the chopped onion, diced red pepper, and minced garlic to the pan. Stir everything together and cook for another 3-4 minutes until the onion turns translucent and the pepper softens – the kitchen will smell wonderfully aromatic at this point.
4. Build the sauce: Stir in the tomato purée, dried oregano, and smoked paprika. Cook for one minute, letting the spices toast slightly. Then pour in the tinned chopped tomatoes and beef stock. Bring the mixture to a gentle simmer – you’ll see small bubbles breaking the surface – and season with salt and pepper.
5. Add the rice: Pour the uncooked rice into the pan and stir it thoroughly through the sauce. Make sure every grain is coated. The mixture will look quite liquidy, but that’s exactly what you want – the rice will absorb the liquid as it bakes.
6. Transfer and bake: Tip the entire mixture into your prepared baking dish, spreading it into an even layer. If using, sprinkle the grated cheddar cheese evenly over the top. Cover the dish tightly with aluminium foil and bake for 30 minutes. After 30 minutes, remove the foil and bake for a further 5-10 minutes – the top should be lightly golden and the rice tender when you press a fork into it.
7. Rest and serve: Remove the dish from the oven and let it rest, uncovered, for 5 minutes. This resting time allows the rice to finish absorbing any remaining liquid and the flavours to meld together. The casserole will be steaming hot and smell deeply savoury – serve it straight from the dish.

Notes

Cover with foil for the first 30 minutes of baking to ensure the rice cooks through. Let rest for 5 minutes before serving for best texture.

I’ve been making this for over 6 years, and it never disappoints. It’s the kind of recipe that adapts to whatever you have in the fridge and always delivers a warm, comforting meal with minimal effort. I’d love to hear how you get on with it – feel free to drop a comment below and share your own twists or questions. Happy cooking!

Simple Ground Beef and Rice Casserole – One-Pan Ground Beef and Rice Casserole for Busy Weeknights

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