Step-by-step instructions
- Preheat your oven to 350°F (175°C).
- In a medium skillet, brown the ground beef over medium heat. Make sure to drain any excess grease afterward.
- In a large mixing bowl, combine the cooked rice, browned beef, cream of mushroom soup, and milk. Next, add in the garlic powder, onion powder, salt, and pepper.
- Fold in the frozen mixed vegetables and half of the shredded cheddar cheese until everything is well coated.
- Transfer the mixture to a greased casserole dish and spread it evenly.
- Sprinkle the remaining cheddar cheese on top.
- Bake in the preheated oven for 25-30 minutes, or until it’s heated through and the cheese is nicely bubbling.
- Let it sit for about 5 minutes before serving, allowing it to set slightly for easier portioning.
Best ways to enjoy it
To serve this cheesy delight at its best, consider garnishing with fresh herbs like parsley or chives for a pop of color and flavor. It pairs beautifully with a side salad or crusty garlic bread. For a complete meal, you might even serve it alongside some roasted vegetables or a light soup.
Keeping leftovers fresh
This casserole can easily be stored for future enjoyment. Once cooled, store any leftovers in an airtight container in the refrigerator for up to three days. If you’re looking to save it for longer, you can also freeze the casserole for up to three months. Just remember to let it cool completely before wrapping it tightly in plastic wrap or foil to prevent freezer burn.
Helpful cooking tips
- For a deeper flavor, try adding some sautéed onions or mushrooms to your beef as it cooks.
- Feel free to play around with the seasoning; Italian herbs can give it an interesting twist!
- Make it even cheesier by using a blend of cheeses or adding in cream cheese for an extra layer of creaminess.
Creative twists
Looking to spice things up? Try adding some diced jalapeños for heat or a splash of hot sauce for a little kick. You can also switch out the cream of mushroom soup for cream of chicken or even a homemade cheese sauce for a decadent twist. For a vegetarian version, substitute the ground beef with lentils or black beans and use a plant-based cheese.

FAQ
What is the prep time for this casserole?
This casserole can be prepared in about 15 minutes before popping it in the oven, making it perfect for busy weeknights.
Can I make this casserole ahead of time?
Absolutely! You can assemble everything the day before, then simply cover it and refrigerate. Just add a few extra minutes to your baking time if you’re cooking it straight from the fridge.
Are there any good substitutions for the cream of mushroom soup?
Yes! If you prefer, you can use cream of chicken soup, or even a homemade white sauce if you want to avoid canned soup altogether. You can also make it dairy-free using a plant-based cream soup substitute.






