Heat a pan with 2 tablespoons oil, saute garlic and onion. Add the rest of the vegetables, stir, cook until tender. Season with 21 seasoning salute, salt, and pepper, stir to mix well. Remove from the pan set aside.
Heat a clean pan with the remaining oil, drop half of the eggs, cook until firm. Scoop 1/4 cup of the veggie mixture onto the middle of the omelet. Sprinkle 1 tablespoon Parmesan cheese on top of the filling. Fold two sides until they close and form an omelet. Transfer to a platter and serve with avocado slices and berries.