Step 1

In a medium pot, heat the oil over medium heat and add the chopped onions and Anaheim pepper. Saute until soft and the onions just begin to turn golden, 3-4 minutes. Add tomato paste and saute for a minute, then add the garlic and cook 1 minute.

Step 2

Add the red lentils and 1 ½ cup water to the pot. Bring to a boil, then reduce to a simmer. Cook 10-15 minutes, stirring occasionally, until the lentils are pretty tender but not falling apart.

Step 3

Add mustard, maple syrup, apple cider vinegar, Worcestershire, chili powder, and salt. Stir to combine. Simmer until the sauce thickens a bit, 3-5 minutes more.

Step 4

Serve on toasted buns with whatever toppings and sides you love!