2 tbsp olive oil
1 small onion, cut in half vertically and thinly sliced
1 green pepper, sliced
1 red pepper, sliced
2 cloves garlic, minced or pressed
1 (12 oz) package seitan, finely chopped
1 tsp vegan Worcestershire sauce
1 tsp garlic powder
1/4 tsp freshly ground pepper
4 slices vegan provolone cheese (if not available, use vegan mozzarella), torn into strips
2 whole wheat sandwich thins
1 cup vegan marinara sauce (optional)
Heat 1 tsp olive oil in a large skillet over medium heat. Sauté the onion and peppers for 3 minutes, stirring occasionally. Cover and reduce the heat to low for 5 minutes, or until the onion becomes soft and translucent. Uncover and increase to medium-high heat. Add the remaining tablespoon of oil, the garlic cloves, and chopped seitan. Make sure all the water is pressed out of the seitan before cooking to keep oil from splattering.
Pour the Worcestershire sauce, garlic powder and pepper over the seitan while constantly stirring it. Cook for approximately 4 minutes or until the seitan starts to turn golden. Lay the cheese on top of the seitan mixture and reduce the heat to low. When the cheese is melted, pile onto the sandwich thins and top with marinara sauce if desired.