French Onion Ground Beef and Rice Casserole
Ingredients: 1 lb ground beef 2 medium onions, thinly sliced 2 tablespoons butter 2 cups cooked rice (white, brown, or wild rice work well) 1 can (10.5 oz) French onion soup (store-bought or homemade) 1 can (10.5 oz) cream of mushroom soup (or cream of chicken for a milder flavor) 1/2 cup sour cream 1…