Preheat oven to 350 and lightly spray 2- 9 x 13 pans.
In a shallow dish, melt butter.
In another shallow dish, add bread crumbs, parmesan cheese, and garlic powder.
Salt and pepper chicken. Dip into the butter and then coat in the parmesan garlic crumbs. Lay in a 9 x 13 pan.
In a medium sized bowl, add zucchini, yellow squash, and potatoes. Toss in olive oil. Add some salt and pepper and remaining parmesan garlic bread coating. Lay in the second 9 X 13 pan.
Bake for 50- 60 minutes until chicken is cooked throughout and vegetables are tender. Stir vegetables occasionally while baking.