Veggie Filled Portobello Mushrooms

Name: Veggie Filled Portobello Mushrooms
Ingredients: 1 small yellow sweet pepper, cut in bite-size pieces (or red, orange, green pepper); 1 small red onion, chopped; 1 medium zucchini, coarsely shredded (or yellow squash); 1 carrot, coarsely shredded; 1 stalk celery, thinly sliced; 2 garlic cloves, minced; 1 -3 tablespoon olive oil; 1 tablespoon fresh basil, snipped; 1 tablespoon lemon juice; 1 (5 ounce) packagefresh Baby Spinach; 1⁄2 cup fine dry breadcrumb; 1⁄2 cup finely shredded parmesan cheese; 4 potobello mushroom caps, stems removed (4-5-inch); 4 slices provolone cheese