2 tablespoons olive oil
4 skinless, boneless chicken breast halves, cut into small cubes
2 (8 ounce) packages sliced fresh mushrooms
salt and ground black pepper to taste
1 pinch garlic powder, or to taste
3 zucchinis, cubed
2 sweet potatoes, cut into cubes
2 large red potatoes, cut into cubes
1/2 cup seasoned bread crumbs
1/2 cup grated Parmesan cheese
1/4 cup olive oil