Ingredients

1 tablespoon olive oil

1/2 cup minced onion

2 garlic cloves, minced

12 ounces portobello mushrooms, shredded or finely chopped

1 (4-ounce) can chopped green chiles, drained

1 tablespoon soy sauce

2/3 cup ketchup

2 teaspoons prepared yellow mustard

1 tablespoon chili powder

1/2 teaspoon liquid smoke

1/2 teaspoon salt

1/4 teaspoon black pepper

4 toasted burger rolls

Preparation

In a large saucepan, heat the oil over medium heat. Add the onion, cover, and cook until softened, 4 minutes. Add the garlic and cook 30 seconds longer. Stir in the mushrooms, chiles, and soy sauce and cook for 2 to 3 minutes to lightly brown. Stir in the ketchup, mustard, chili powder, liquid smoke, salt, and pepper. Mix well, adding a little water if the mixture is too dry. Simmer for 5 minutes to blend flavors. When ready to serve, spoon the mixture onto the rolls and serve hot.