3 Tbsp. Butter
1 Med. Sized Onion, finely chopped
1 1/2 cups all purpose baking mix
2 cups (8 oz.) shredded Swiss or Cheddar cheese, divided
1/2 cup milk
2 tbsp. Dijon mustard
1 large egg
1 cup finely chopped cooked ham (I buy the prepackaged chopped ham)
Preheat oven to 425. Melt butter in skillet over medium high heat. Add onion and saute three to five minutes or until tender.
Combine baking mix adn half of cheese in a large bowl; make a well in center of mixture.
Whisk together milk, Dijon mustard, and egg; add to cheese mixture, stirring just until moistened. Stir in onion and ham. Spoon into lightly greased muffin pans, filling two-thirds full. Sprinkle with remaining 1 cup cheese and poppy seeds if desired.