Blue Cheese Artichoke Dip

1 cup crumbled blue cheese
1 cup shredded Parmesan cheese
3 cloves garlic, chopped
1 (16 ounce) carton reduced-fat sour cream
1 small jar marinated artichokes, chopped  (about 1 cup)
1 (10 ounce) package frozen spinach, thawed

Place cheeses, sour cream and garlic together in a skillet or casserole dish and melt them, stirring to combine. (If you do this in the microwave, use medium or low power and stop to stir every couple of minutes.) Stir in artichokes and spinach and reheat until dip is hot but not bubbly.

Serve with crackers.