1
Place oven rack in upper third of oven. Heat oven to 450ºF. Lightly coat 6 (6- to 8-ounce) custard cups or muffin cups with cooking spray.
2
Place tomato slices on paper towels; cover with additional paper towels. Gently press tomatoes to soak up excess juice.
3
Gently press 2 slices ham into each custard cup, overlapping to fit. Place 1 slice tomato over ham, cutting to fit; top with 1 egg. Season with salt and pepper. Sprinkle each egg with 1 tablespoon cheese.
4
Bake ham baskets 10 to 15 minutes or until eggs are desired doneness. Gently remove ham baskets from custard cups. Place on warm serving platter; sprinkle with chives.