Step 1: Make the Burger Sauce

1. In a small bowl, combine mayonnaise, ketchup, and minced pickles.
2. Mix until smooth and creamy. Store in the refrigerator until ready to use.

Step 2: Shape the Burger Patties

1. Divide the ground beef into 3 equal portions.
2. Shape each portion into a flat patty, about 1/3 to 1/2 inch thick and slightly larger than the burger buns.
3. Use your thumb to make a shallow indent in the center of each patty to prevent it from puffing up during cooking.

Step 3: Season the Patties

1. Sprinkle both sides of each patty with kosher salt and black pepper, making sure the seasoning is evenly distributed.

Step 4: Prepare the Air Fryer

1. Add 1 cup of water to the bottom of the air fryer basket to minimize smoke.
2. Lightly spray the basket with nonstick cooking spray.

Step 5: Cook the Burgers

1. Place the burger patties in the air fryer basket, ensuring they don’t touch each other for even cooking.
2. Set the air fryer to 350°F and cook for 8 minutes.
3. After 8 minutes, carefully place a slice of Cheddar cheese on top of each patty and cook for an additional 1–2 minutes, or until the cheese is melted.

Step 6: Assemble the Burgers

1. 1. Toast the hamburger buns, if desired.
   2. Spread the quick burger sauce on the bottom half of each bun.
   3. Layer lettuce, a slice of tomato, a cooked burger patty with melted cheese, and red onion slices.
   4. Top with the remaining half of the bun and serve warm.