- Preheat oven to 375F. 
- Lightly grease an 8 or 9-inch baking dish with cooking spray. Set aside. 
- Brown the ground beef in a large skillet over medium-high heat. Drain excess fat. 
- Add the onions to the skillet and sauté for 4 to 5 minutes until translucent. 
- Add the garlic and cook, stirring frequently, for an additional minute. 
- Stir in Worcestershire sauce and season with salt and pepper to taste. 
- Transfer ground beef mixture to the prepared baking dish and spread evenly. 
- Top with cream of mushroom soup, followed by green beans, followed by the cheddar cheese. Make sure to season the green bean layer.  
- Finally, top with tater tots.  
- Bake for 35 to 40 minutes or until tater tots are golden brown and cheese is melted. 
- Serve immediately.