Canned Mackerel Diet! Nagaimo Gratin

• 1/2 can Canned mackerel
• 2 stick Asparagus
• 1/4 pack Shimeji mushrooms
• 1/4 Onion (sliced)
• 100 grams Nagaimo (grated)
• 1 Egg (beaten)
• 1 tbsp Mayonnaise
• 1 dash Salt and pepper

1. Make the nagaimo sauce.
2. Put the grated nagaimo in a bowl and mix with the egg, mayonnaise, salt, and pepper.
3. Remove the hard part of the asparagus and cut into 4 cm pieces.
4. Discard the root ends of the shimeji mushrooms and shred.
5. Thinly slice the onions.
6. Flake the mackerel in a gratin dish with the juices.
7. Top with Step 2 asparagus, shimeji mushrooms, and onions.
8. Top with the Step 1 nagaimo sauce and bake in an oven or oven toaster at 230C for 15~20 minutes.
9. This is the tofu sauce version

mackerel, pack, onion, egg, mayonnaise, salt

Taken from cookpad.com/us/recipes/157333-canned-mackerel-diet-nagaimo-gratin (may not work)