1. Prepare 2 potatoes, carrot segments and onions, and wash them for later use.

2. Peel the potatoes and cut each potato into 4 pieces. Put potato pieces, carrots and eggs in a steamer and steam for 25 minutes.

3. Cut the white onion into filaments, boil the water in the pot, blanch and remove it. Chop it for later use.

4. Steamed potatoes, turn off the fire and dry 1 minute. Peel the eggs and chop the carrots. Then, put the eggs, potato pieces and carrot pieces together in a fresh-keeping bag, pat them gently with a rolling pin first, and then roll them into mud.

5. Pour into a clean bowl, mix with chopped onion, sprinkle with appropriate amount of black pepper and a spoonful of salt.

6. Add three tablespoons of Cupid blue bottle salad dressing and mix.

7. The mashed potatoes after mixing are ready.

8. Canned tuna, choose the water-soaked taste. After opening the canned tuna, take out a small amount, shred it and sprinkle it on the top of the mashed potato ball, and then you can eat it.