Amazing Breakfast Burritos

AMAZING BREAKFAST BURRITOS
Extra virgin olive oil
½ of medium red onion, finely chopped
6 slices turkey bacon, cut crosswise into ½” strips, or your favorite bacon
2 c. packed firmly fresh baby spinach or kale, coarsely chopped
½ c. chopped cherry tomatoes, thinly sliced
Salt, black pepper
4 large eggs
4 large egg whites
¼ c. crumbled feta cheese, or your favorite grated cheese
1-2 T. snipped chives
¼ c. chopped cilantro, optional
4 (8”) whole wheat tortillas, warmed
4-6 red leaf lettuce leaves, or your favorite lettuce