Defrost spinach and squeese dry.In a bowl add chopped artichokes,parmesan cheese,1cup gruyere cheese,spinach,cream cheese,sour cream,mayonnaise,and minced garlic.Place into a casserole dish or a pie plate.Top with remaining Gruyere cheese.Bake 25 to 30 minutes until bubbly and cheese is browned.Serve with toasted baguettes or crackers..