Lightly coat a 2-quart baking dish with spray. Set aside.
Heat oil in large nonstick skillet over medium-high heat.
Add cauliflower; cook, stirring occasionally, for 5 to 8 minutes, or until cauliflower begins to soften.
Add capers, olives, garlic, crushed red pepper (if desired), sage, and lemon peel; mix well.
Place cauliflower mixture in baking dish. Top with bread crumbs, mozzarella and Parmesan cheeses. Bake for 15 to 20 minutes, or until cheese is melted and bread crumbs are golden brown.
Garnish with parsley if desired; serve immediately.
Recipe Notes
The Nutrition Facts box below provides estimated nutritional information for this recipe.