Preheat the air fryer: Turn your air fryer on to 350°F (175°C) for a few minutes to ensure even cooking. While it preheats, you can prepare your omelet mixture.

Prepare the egg mixture: In a medium mixing bowl, whisk together the eggs, milk, salt, pepper, and garlic powder until fully combined. Whisking well ensures your mini omelets will be fluffy and light.

Add vegetables and protein: Stir in the diced bell peppers, onions, chopped greens, shredded cheese, and cooked bacon or ham if using. Make sure the ingredients are evenly distributed so every mini omelet has a balanced flavor and texture.

Grease your molds: Lightly spray silicone muffin cups or small oven-safe ramekins with cooking spray or brush with a little oil. This prevents sticking and makes removal easier after cooking.

Fill the molds: Pour the egg mixture evenly into the prepared cups, filling each about 3/4 full to allow room for the eggs to puff up while cooking.

Air fry the mini omelets: Place the filled molds into the air fryer basket. Cook at 350°F (175°C) for 10–12 minutes, or until the eggs are fully set and lightly golden on top. You can check doneness by inserting a toothpick into the center—it should come out clean.

Cool and remove: Carefully remove the molds from the air fryer and let the mini omelets cool for a minute or two. Gently run a small spatula or knife around the edges to release them.

Serve and enjoy: Transfer the mini omelets to a plate and serve immediately. They pair beautifully with fresh fruit, toast, or a light side salad for a complete breakfast. For added flair, sprinkle a little fresh parsley or chives on top.