Preheat the oven to 350 F. In a large bowl, mix together cake mix with eggs and vegetable oil until smooth. Fold in the fruity pebbles cereal.
Use a cookie scoop to place the cookie dough onto a large ungreased baking sheet at least 2-inches apart. Place one mini cadbury egg on each piece of cookie dough. Cover with more cookie dough. Bake for 10-12 minutes.