Preheat your oven to 350°F (175°C). This ensures it’s at the perfect temperature when you’re ready to bake your casserole.

Heat a small amount of oil in a large skillet over medium heat. Add the ground beef and cook, breaking it up with a spoon, until it’s browned and fully cooked through. Remove any excess fat and set the cooked beef aside.

In a large mixing bowl, combine the cooked ground beef, sour cream, cream of mushroom soup, onion powder, garlic powder, and a pinch of salt and pepper. Mix everything thoroughly until the mixture becomes smooth and evenly blended.

Next, fold in the frozen mixed vegetables and frozen hash browns. These ingredients give the casserole its heartiness and texture. If you’re using fresh veggies, be sure to lightly cook them before adding them in.

Spread the beef and vegetable mixture into a greased 9x13-inch baking dish, ensuring it’s evenly distributed. Then, sprinkle the shredded cheddar cheese on top. You can add extra cheese if you love a gooey, cheesy finish!

Cover the casserole with aluminum foil and bake it in the preheated oven for 30 minutes. This helps the flavors meld together. After 30 minutes, remove the foil and continue baking for another 15-20 minutes until the top is golden and bubbly.

Once it’s done, let the casserole sit for a few minutes to set before serving. The crispy top and creamy interior are the perfect balance of textures—your family will love it!