01 - Dice bell peppers, onions, and tomatoes into small uniform pieces.
02 - In a large skillet over medium heat, sauté bell peppers and onions for 3–4 minutes until softened. Add tomatoes and cook for 2 more minutes.
03 - In a separate bowl, beat eggs until uniform, then pour into the skillet with vegetables. Stir gently and cook until eggs are just set.
04 - Stir black beans into the skillet and cook for 1–2 minutes until heated through. Remove from heat.
05 - Lay out flour tortillas on a clean surface. Evenly distribute the egg and vegetable mixture among the tortillas, placing the filling in the center of each.
06 - Fold in the sides of each tortilla, then roll up tightly from the bottom to form burritos.
07 - Wrap burritos individually in foil or parchment paper. Store in an airtight container in the freezer for up to two months. To serve, reheat in the microwave or oven until warmed through.