Whisk 5 large eggs, 2 tablespoons of heavy cream and a big pinch of salt and black pepper until smooth and fully combined
In a medium bowl, combine 1/3 cup of finely diced red onions, 1/3 cup of quartered cherry tomatoes, 1/2 cup of thinly sliced spinach, 1/3 cup chopped fire roasted red bell peppers, 1/8 cup of thinly sliced kalamata olives and 1/8 cup of crumbled feta and set aside for now
Place a large non-stick skillet over medium heat and grease with 1-2 tablespoons of extra virgin olive oil or your favorite non-stick spray
Pour the egg mixture into the skillet and let it cook gently until air bubbles begin to form around the edges
Reduce the heat to medium low and cover the skillet
Cook covered for another 60-90 seconds or until the eggs in the center are lightly set
Carefully flip the eggs and add most of the filling to one half of the omelette
Reduce the heat to low, cover the skillet and cook for 2-3 minutes or until the filling is warm and the spinach is slightly wilted
Fold the omelette and serve garnished with tzatziki and lemon wedges