Lightly coat the air fryer basket with a nonstick spray or vegetable oil.
Preheat fryer to 375 degrees.
To a large bowl, combine: 1 pound ground beef, ½ cup oats, ¼ cup finely diced onion, 1 egg, 1 teaspoon olive oil, ½ teaspoon minced garlic, ½ teaspoon salt, ½ teaspoon pepper, ½ teaspoon thyme, ½ teaspoon chili powder, and ⅛ teaspoon cayenne pepper.
Form four equal size small mini meatloaves and carefully place in air fryer basket.
Set air fryer to 20 minutes and press start.
While the meatloaf is cooking, prepare the glaze by adding, ½ cup ketchup, ¼ cup brown sugar, and 1 tsp Worcestershire sauce to a small bowl. Whisk until ingredients are incorporated.
After the meatloaf cooks for 20-25minutes, (until the internal temperature is 165 degrees) open basket and pour sauce over each loaf.
Bake for an additional 3 minutes.
Serve immediately.
Notes
Store leftovers in an airtight container for up to four days in the refrigerator.