Spinach and Artichoke Dip

This may not be very healthy, but it is very good!

1/2 cup butter
1 medium onion, chopped
2 (10 oz) pkgs frozen chopped spinach, thawed and well drained
1 (14 oz) can artichoke hearts, drained and chopped
1 (8 oz) pkg cream cheese
1 (8 oz) pkg sour cream
1 cup shredded Monterey Jack cheese, divided (I like Pepper Jack)
1 cup grated Parmesan cheese, divided
2 Tbsp. hot sauce

Melt butter in a large saucepan or skillet over medium heat. Add onion and cook until soft, about 5 minutes. Stir in spinach, artichokes, cream cheese, sour cream, 3/4 cup Monteray Jack cheese, 3/4 cup Parmesan cheese, and hot sauce. Stir until well blended and heated through. Pour mixture into a 1/2 quart casserole dish and top with remaining cheeses. Bake in a 350 degree oven until cheese starts to brown and bubble, about 10 minutes.

Serve with favorite dipping chips...bagel crisps, tortilla chips, etc.

Makes 4 cups.

(Thanks Janet!!!)