I didn't find a mock tuna recipe using carrot pulp that seemed fast and easy enough, and since I was in a hurry I made my own. Use in sushi, as a spread or pate for crackers, or in a sandwich.
I'm not adding a picture because we all know what mock tuna looks like. It looks like tuna!
1/4 cup walnuts
1/4 cup sunflower seeds
1/2 white or yellow onion, cut into chunks
1/4 cup lemon juice
1/4 cup nama shoyu (feel free to omit, but do substitute another liquid, even simple salted water)
1 tablespoon dulse flakes or to taste
1 teaspoon dried dill or to taste (I had no fresh dill in the house but you should use it if you have it)
About 3 cups carrot pulp (based on eyeballing what we had)
1/4 cup parsley leaves
Blend nuts, onion, liquids, dulse and dill (everything but the pulp and the parsley) in a food processor until mostly smooth.
Then add carrot pulp and pulse to combine. Taste and adjust for seasoning - I added another splash of lemon.
Add parsley at the very end and pulse - you still want some flecks of green in there.