"vegggi- egg bake" w/an italian kick! mamma mia!

Ingredients

• 1 tablespoon olive oil
• 1 - each.....zucchini, and a small yellow squash, cut lengthwise in half & sliced crosswise.
• 1 - red bell pepper...chopped
• 1 medium onion...sliced
• 1 cup sliced fresh mushrooms
• 1/2 cup shredded carrots
• 1/2 teaspoon garlic powder
• 1/2 teaspoon ground black pepper...salt is in the crackers
• 30 - premium- whole grain saltine crackers, coarsly broken
• 6 medium eggs
• 1 cup milk
• 1/2 cup grated parmesan cheese.........divided!