Add your peppers, onions, and mushrooms to a food processor. Pulse until all is roughly chopped and around the same size.

Sauté this mixture in a pan over medium heat until most of the moisture has cooked out (optionally sprinkle salt to draw out more water). Remove from pan and set aside.

In a small food processor add the oats and spices and blend until roughly combined.

In a large bowl add the lentils, cooked veggies, blended oats, and ketchup and mash to form the patty mix until it holds shape.

Form patty on a tortilla and cook patty side down and optionally add a weight on top to keep it flat. Flip after about 3-5 mins, add cheese and steam to melt.

For burger sauce add all ingredients in a small bowl and mix.

Assemble with toppings of choice and enjoy.