zucchini and sweet potato casserole

Ingredients For zucchini and sweet potato casserole

• 1 c

  baking mix ( such as bisquick)
• 3

  eggs
• 1/2 c

  vegetale oil or virgin olive oil
• 1 c

  shredded cheddar cheese
• sm

  onion, chopped
• 1 c

  shredded sweet potatoes
• 2 c

  shredded zucchini
• 1 c

  shredded yellow squash
• salt and pepper, to taste