Sweet Corn & Basil Penne Casserole

dried whole wheat penne

large zucchini, diced

olive oil

frozen corn (thawed) or fresh corn

half & half cream

garlic, peeled

block of low-fat cream cheese or 1/2 cup of mascarpone; at room temperature

low-fat ricotta cheese

and 1/2 cups of grated parmesan cheese; divided

zest of one large lemon

juice of half a large lemon

salt and pepper

chopped fresh basil