01 - In a mixing bowl, whisk eggs, low-fat milk, salt, and black pepper until fully blended.
02 - Heat olive oil in a medium skillet over medium heat. Add diced red onion and bell pepper; cook 2 to 3 minutes until softened.
03 - Incorporate chopped spinach and sauté for 1 minute until wilted.
04 - Reduce heat to low. Pour in egg mixture and gently scramble, stirring until eggs are softly set, about 3 minutes.
05 - Fold in the chopped turkey or chicken and black beans. Cook, stirring, for 1 additional minute until heated through.
06 - Sprinkle shredded cheddar cheese over the mixture and stir until melted and fully integrated.
07 - Heat whole wheat tortillas in a dry pan or microwave for about 15 seconds until pliable.
08 - Evenly divide the filling between tortillas. Fold in sides and roll tightly to form burritos.
09 - Serve immediately with salsa if desired.