Spinach and Cheese Casserole – Duke's Mayo

Ingredients

• 2 (10 oz.) packages frozen spinach, thawed
• 1 onion, chopped
• 2 cloves garlic, minced
• 2 Tbsp. butter
• 1/4 cup Duke’s Mayonnaise
• 5 eggs
• 1 cup cottage cheese
• 1 Tbsp. flour
• 3 cups grated cheddar cheese, plus additional 1/2 cup for topping
• 1 tsp. salt
• 1 tsp. ground black pepper