Now, let’s walk through the easy steps to create Grandma’s Ground Beef Casserole:

1. Preheat the Oven: Set your oven to 350°F (175°C) to ensure it’s hot and ready.
2. Cook Ground Beef: In a large skillet, heat olive oil over medium heat. Add the diced onions and minced garlic, sautéing until fragrant. Then add the ground beef, cooking until browned.
3. Add Vegetables: Once the beef is cooked, stir in the frozen mixed vegetables and cook for an additional 5 minutes.
4. Incorporate Tomatoes and Soup: Pour in the canned diced tomatoes (with juice) and cream of mushroom soup. Mix well to combine all ingredients.
5. Season: Add Italian seasoning, salt, and pepper to taste. Stir until everything is well-coated.
6. Combine with Pasta: In a separate pot, boil the pasta according to package instructions until al dente. Drain and add the cooked pasta to the beef mixture.
7. Add Broth: Pour in beef broth or water, stirring to combine. Make sure everything is evenly mixed.
8. Transfer to Baking Dish: Transfer the mixture into a greased 9×13 inch baking dish. Spread evenly.
9. Top with Cheese: Sprinkle the shredded cheese over the top, covering the entire casserole.
10. Bake: Place the baking dish in the preheated oven and bake for 15-20 minutes, until the cheese is bubbly and slightly golden.
11. Garnish and Serve: Once out of the oven, let it cool for a few minutes. Garnish with fresh parsley if desired.

These straightforward steps will lead you to a delicious casserole that’s sure to please everyone at the table.