Grilled Vegetable Sandwich – Vegetables 3 Ways (Fresh, Grilled and Marinated) Make a Satisfying Meal – eggplant (marinated, see recipe index), portabello mushrooms, red onion (sliced thick), red bell pepper (cut into quarters with seeds and veins removed), Roma tomato (sliced), Romaine lettuce (washed and dried), soft roll, cheese (soft spreadable ), salt and pepper (to taste), Prepare the marinated eggplant in advance.; Grill the mushrooms, bell peppers and onion.Remove the blackened skin from the peppers if desired.; Toast the sandwich roll if desired and spread the cheese on the top half. ; Assemble the sandwich, bottom roll, grilled red bell pepper, portabello mushroom (sliced), onion, marinated eggplant, fresh tomato and lettuce.; Salt and pepper, to taste. Drizzle with some of the eggplant vinaigrette. Place the cheesy roll on top and slice in half.; –