Brown the Beef: In a large skillet, cook the ground beef over medium heat until browned. Drain any excess grease and add the chopped onion. Cook until the onions are soft.
Transfer to Crockpot: Add the cooked beef and onions to the crockpot. Stir in the shredded cheddar cheese, milk, and mayonnaise. Season with salt and pepper to taste.
Cook: Cover and cook on low for 2-3 hours, stirring occasionally to ensure the cheese melts evenly into the beef mixture.
Assemble: Serve the cheesy beef mixture on hamburger buns. Add your favorite toppings for extra flavor.
Enjoy: These Crockpot Cheeseburgers are best served hot. They’re a hit at gatherings or as an easy dinner option!
