Onion cheese Dip

Heat oven to 375 - Place 4 oz shredded pepper jack cheese, 8 oz shredded chedder, 4 oz light cream cheese, 1/2 c. light mayo, 1/4 tsp dried thyme and 1 cup finely chopped sweet onion in bowl of food processor. Process until fairly smooth. Stir cheese mixture into 2 cups finely chopped sweet onion in a shallow 6 cup baking dish. Bake at 375 for 20 minutes. Stir. Bake 10 more minutes. Let cool slightly. Serve with crackers or toast.