Preheat the Oven: Start by preheating your oven to 375°F (190°C).
Cook the Aromatics: In a large skillet, heat a drizzle of olive oil over medium heat. Add the chopped onion and minced garlic, sautéing until the onion is soft and translucent.
Brown the Beef: Add the ground beef to the skillet. Cook until the beef is browned and fully cooked, breaking it apart with a spatula as it cooks. Drain any excess grease.
Mix in the Veggies and Soup: Stir in the cream of mushroom soup and the frozen mixed vegetables, mixing everything evenly. Season with salt and pepper to taste.
Transfer to Casserole Dish: Pour the beef mixture into a casserole dish, spreading it out evenly.
Add Biscuits and Cheese: Top the meat mixture with refrigerated biscuits, spacing them evenly. Sprinkle shredded cheddar cheese over the top.
Bake: Place the dish in the preheated oven and bake for 25-30 minutes, or until the biscuits are golden brown and fully cooked.
Serve: Allow to cool for a few minutes before serving. Enjoy the hearty flavors and delightful textures!