Truly the BEST Tater Tot Casserole recipe around!
Taken from:
Momontimeout.com

Preptime: 10 minutes
Cook Time: 35 minutes
Servings: 6

INGREDIENTS:

• 1 lb ground beef
• 1/2 onion , diced
• 2 cloves garlic , minced
• 1 tbsp Worcestershire sauce
• 15 oz can green beans , drained
• 10.75 oz can condensed cream of mushroom soup
• 2 cups shredded cheddar cheese
• 2 cups frozen tater tots
• salt and pepper to taste

DIRECTIONS:

• 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.
• Mix together cream of mushroom soup, green beans, cheddar cheese. pour on top of beef mixture. 
• Finally, top with tater tots.
• Bake for 35 to 40 minutes or until tater tots are golden brown and cheese is melted.
• Serve immediately. 

NOTES:

*this can be fairly salty, i recommend using low-sodium green beans.