Cut a ripe avocado in half, remove the seed, and mash the flesh in a mixing bowl. Add lime juice and mix until creamy.

Rinse and drain black beans, then stir into the mashed avocado. Add sweet corn, red onion, and cilantro, and mix gently.

Sprinkle cumin powder, chili powder, salt, and black pepper over the mix and fold in carefully.

Warm tortillas in a non-stick skillet for 15-20 seconds on each side or microwave for 30-45 seconds.

Lay a warm tortilla flat, add filling in the center, fold sides in, and roll tightly from bottom to top.

Slice assembled burritos diagonally and serve with salsa or guacamole.