Artichoke Dip with Roasted Peppers 1 cup mayonnaise 1 cup grated Parmesan cheese 14-oz jar artichoke hearts, drained, not marinated 1/8 tsp garlic powder 1/8 tsp onion powder, optional 1/4 cup minced roasted red pepper Combine all ingredients. Spread in a pie plate or shallow 1-quart baking dish. Bake at 350° for 30 minutes. Serve cold or heat in the oven for about 10 minutes at 350°. Don’t reheat in the microwave or dip might separate.