Step 1

Drain canned black beans and allow to sit for 10 to 15 minutes. Add black beans to a large bowl and mash using a fork or potato masher (paid link). Set to the side.

Step 2

Cut your onion and red bell pepper into large pieces half and add to food processor (paid link) blending to a fine chop. Drain any excess liquid and add to the same bowl as the beans.

Step 3

Add remaining burger ingredients and seasonings, mix, cover, and refrigerate for 30 minutes.

Step 4

Form bean mixture into patties and cook at medium to high heat for 5 minutes per side adding a cheese slice once flipped.

Step 5

For the avocado sauce, remove the seed and skin from the avocado. Blend with avocado sauce ingredients.

Step 6

Build your burger by adding lettuce, tomatoes, and avocado sauce.