Veggie & Tempeh Sloppy Joes

Ingredients

• 1 tbsp. olive oil
• 1 medium onion, chopped
• 16 oz. tempeh, crumbled
• 1/4 c. brown sugar
• 1/2 tsp. garlic powder
• pinch of cayenne pepper (optional)
• 1 small green bell pepper, chopped
• 1 small zucchini, quartered lengthwise and sliced
• 1 ear of corn, removed from cob (or 1/2 c. frozen corn)
• 1 tbsp. red wine vinegar
• 1 tbsp. soy sauce
• 1-15 oz. can tomato sauce
• 2 tbsp. tomato paste
• salt and pepper to taste
• 6 rolls, sliced in half