Wash and cut onion and red bell peppers. Heat 1 Tbsp olive oil in a skillet over medium-high heat. Add the vegetables, add a pinch of salt and saute for about 3 minutes. Remove from skillet and set aside.
Cook the ground sausage in the skillet until cooked through, about 5 -7 minutes. Transfer to the plate with the onion and bell peppers.
In a bowl whisk 2 eggs and add a dash of salt and pepper. Heat over medium-high heat 1 Tbsp olive oil in the skillet you cooked the vegetables. Add egg mixture to hot skillet and cook while the eggs sit undisturbed for about a minute until egg mixture is set. With a spatula flip the omelet on the other side and cook for about 30 seconds.
Transfer to a plate, add filling and fold omelet in half. While making the remaining omelets, cover with foil to keep warm.