Cheater'S Clam Chowder

Ingredients

• 1 (10 ounce) can condensed new england clam chowder (or 15 oz.)
• 1 (10 ounce) can condensed cream of celery soup
• 1 (10 ounce) can condensed cream of potato soup
• 1 (6 ounce) can minced clams
• 1/2 cup chopped onion
• 1/2 cup chopped celery
• 1 tablespoon margarine
• 3 cups fat-free half-and-half
• 1 cup 2% low-fat milk
• 3/4 cup shredded low-fat cheddar cheese
• 4 cooked diced potatoes (peeled)
• 3 teaspoons dried dill
• 1 1/2 teaspoons dried basil
• 2 teaspoons garlic powder
• salt and pepper