Summer Squash Gratin

Ingredients

• 6 buttery crackers
• 1 tablespoon cornmeal
• 2 tablespoons olive oil
• 1 shallot, thinly sliced
• 2 yellow squash, sliced 1/4-inch thick
• 2 zucchini, sliced 1/4-inch thick
• 1/2 teaspoon garlic powder
• 1 pinch salt and ground black pepper to taste
• 1/2 cup 2% milk
• 2 tablespoons butter
• 1/2 cup shredded Mexican cheese blend