French Onion Chicken Bake

Ingredients That Delight:
2-1/2 pounds chicken breasts (bone-in or boneless)
1/4 cup mayonnaise
2 tablespoons garlic, chopped
1 ounce dry onion soup mix (1 envelope)
1 cup dry breadcrumbs
1/4 cup grated Parmesan cheese
Kosher salt and pepper, to taste