Creating Tater Tot Casserole with Ground Beef can be straightforward if you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Cook the Beef: In a large skillet over medium heat, brown the ground beef until fully cooked. Drain excess fat.
3. Add Onion: Stir in the diced onion and cook until translucent, about 3-4 minutes.
4. Mix in Vegetables: Add the frozen mixed vegetables to the skillet and cook for an additional 2-3 minutes until slightly thawed.
5. Combine Ingredients: Pour in the cream of mushroom soup, garlic powder, onion powder, salt, and pepper. Stir until well combined.
6. Layer the Casserole: Transfer the beef mixture into a greased 9×13 inch baking dish, spreading it evenly.
7. Add Cheese: Sprinkle the shredded cheddar cheese over the beef mixture.
8. Top with Tater Tots: Arrange the frozen tater tots in a single layer on top of the cheese.
9. Bake: Place the casserole in the preheated oven and bake for 30-35 minutes, or until the tater tots are golden brown and crispy.
10. Cool and Serve: Allow the casserole to cool for 5-10 minutes before serving. Garnish with fresh parsley if desired.

These steps will guide you in creating this incredible Tater Tot Casserole effortlessly.