HEAT oven to 350°F. COAT 24 mini muffin cups (1 3/4 x 3/4-inch) with cooking spray. Gently PRESS one wonton wrapper into each cup, allowing ends to extend above edges of cup.
BEAT eggs and flour in medium bowl until blended. ADD ham, green onion and bell pepper; MIX. SPOON about 1/2 Tbsp. egg mixture into each wonton-lined muffin cup.
BAKE in center of 350°F oven until filling is set, 12 to 15 minutes. REMOVE from cups. SERVE warm.
Add chopped spinach and shredded mozzarella for a creamy appetizer.