Triple Cheese Bacon Mac Burger

Triple Cheese Bacon Mac Burger
Ingredients:
For the Burger:
1 lb (450g) ground beef (80% lean, 20% fat for juiciness)
4 burger buns
8 slices of bacon, cooked until crispy
4 slices cheddar cheese
4 slices American cheese
4 slices Swiss cheese
Salt and pepper to taste
1 tablespoon olive oil (for grilling or pan-frying)
1/2 cup lettuce leaves (optional)
1 large tomato, sliced (optional)
Pickles (optional)
For the Mac and Cheese:
1 cup elbow macaroni
1 1/2 cups shredded cheddar cheese
1/2 cup shredded mozzarella cheese
1/4 cup grated Parmesan cheese
1/4 cup milk (or more if needed)
2 tablespoons butter
Salt and pepper to taste
Instructions: