Chop onion,garlic and bell pepper and saute in butter until onions begin to turn clear. Add mushroom soup and begin adding half and half until soup has a creamy texture(not too thick or not too thin). Cook on medium heat for about 10 minutes or until vegetables are tender. Add artichoke hearts salt and pepper. Cook 5 more minutes. Add shrimp and crab meat and cook 5 minutes. Serve with warm crusty bread.