375°F (190°C). Lightly grease a 9×13-inch baking dish and set aside. This will ensure the casserole doesn’t stick and makes cleanup a breeze.
Step 2: Cook the Ground Beef
In a large skillet over medium heat, add the ground beef. Cook until browned, breaking it up into small pieces as it cooks. Once browned, drain any excess fat for a lighter casserole.
Step 3: Sauté Onions and Garlic
Add the chopped onion to the skillet and sauté until softened, about 3–4 minutes. Stir in the minced garlic
