TESTED & PERFECTED SPINACH STUFFED CHICKEN Recipe. Step-by-Step. is perfect for busy families. Comes together quickly with a few staple ingredients! INGREDIENTS6 ounces fresh spinach, torn 1?3 cup chopped onion 1?2 cup chopped fresh mushrooms 1 teaspoon minced garlic 1 tablespoon oil 1?2 teaspoon oregano 1?2 teaspoon salt...