Make eating veggies fun for your little ones!
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Preheat oven to 375°F. Spread 1 cup sauce in bottom of shallow casserole dish; set aside.
Blend ricotta cheese, 1 cup mozzarella cheese, Parmesan and egg in bowl. Stir in prepared broccoli florets.
Generously fill each shell with broccoli mixture and arrange in prepared pan. Drizzle with remaining sauce and sprinkle with remaining cheese. Cover and bake 35 minutes or until heated through.