Step 1: Preheat the Air Fryer. Start by preheating your air fryer to 300°F (150°C) to ensure even cooking.
Step 2: Prepare the Air Fryer Basket. Spray the air fryer basket generously with cooking spray to prevent sticking.
Step 3: Mix the Ingredients. In a mixing bowl, combine the slightly beaten eggs, crumbled breakfast sausage, shredded cheese, diced red bell pepper, chopped green onion, and a pinch of cayenne pepper. Stir gently until well incorporated.
Step 4: Pour the Mixture into the Basket. Carefully pour the egg mixture into the prepared air fryer basket, spreading it out evenly.
Step 5: Cook the Frittata. Cook for about 10-12 minutes, or until edges are set and center is firm. Check with a toothpick.
Step 6: Cool and Serve. Remove from the air fryer, let cool for a few minutes, cut into wedges, and serve warm.