Sandwiches made with these Grilled Portobello Mushrooms feature a savory homemade sauce of cloves, brown sugar and ketchup. Grilled onions complete this healthy treat.     Ingredients 1/4 cup of ketchup 2 Tbsp of brown sugar 1 Tbsp soy sauce 4 garlic cloves 1 Tbsp onion, minced 2 tsp ground cumin 8 large Portobello mushrooms, […]