This takes time and care, ... or skillet. Sauté olives, 2/3 shallot, 1/2 onion, ... zucchini and yellow squash and sauté until onion is ... 4 to 6 servings.
In a glass baking dish arrange the squash half, cut side down, pour ... remaining 1 tablespoon Parmesan over it, and garnish with the additional basil.