Spinach & Artichoke Grilled Cheese Sandwich with Cheesy Melted Filling - cookrisp

Ingredients

• 4 oz frozen chopped spinach, thawed and thoroughly squeezed dry
• ½ cup marinated artichoke hearts, drained and chopped (about ¼ of a 12 oz jar)
• 1 cup shredded mozzarella or fontina
• 2–3 Tbsp cream cheese, softened
• 2 Tbsp grated Parmesan cheese
• 2–3 Tbsp mayonnaise
• ½ tsp garlic powder
• Pinch of crushed red pepper (optional)
• Salt and pepper, to taste
• 4–8 slices sturdy bread (sourdough, Italian, whole wheat)
• Butter or olive oil, for grilling