Combine cooled mashed potatoes, bacon bits, green onions, egg, onion powder, garlic powder and pepper in a large bowl. Mix until well combined.
Wrap about 3 tablespoons of the mashed potato mixture around each stick of cheese trying to ensure it is completely covered (this helps prevent leaks).
Lay each egg roll wrapper out with a corner pointing towards you. Place your mashed potato and cheese filling in the center of each wrapper. Fold in the sides and roll the wrapper tightly. Use a dab of water to secure the tip of the wrapper. (If you don’t know how to roll an egg roll it usually shows on the package).
Note: It is important to make sure the sides of the wrapper are tucked in holding the ingredients in. If they leak, it can cause splattering.
Preheat oil to 350 degrees. Fry each egg roll for about 4-5 minutes or until browned and crispy.