Baked Artichoke Fondue

Name: Baked Artichoke Fondue
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Cuisine: American, Southern
Ingredients: 1 8 oz container mascarpone cheese or block cream cheese (softened); 1 cup real mayonnaise; 1 cup sour cream; 1 cup heavy cream; 1 tsp lemon juice or 1/2 tsp lemon pepper; 1 0.6 oz package dry zesty Italian salad dressing seasoning or Kraft "Anything" dry dressing mix; 1/2 tsp red pepper flakes; salt and black pepper to taste; 1 14 oz can artichoke hearts (drained and roughly chopped); 4 green onions (thinly sliced); 1/2 cup grated Parmesan or peccarino-romano cheese; 2 cups shredded Gruyere or Swiss cheese (divided)