Chop tomato
Heat black beans until warmed through.
Stuff tortilla with black beans, corn, tomato, and shredded cheese. Heat in the toaster oven or microwave until the cheese is melted.
Slice avocado and mash with a fork. Measure 2 Tbsp. of the mashed avocado.
Serve burrito with salsa and mashed avocado for dipping.