(Sorry in advance for the lack of proper tags, I’m not sure how to add them on mobile)
So I tend to eat a can of tuna once or twice a week, usually with just a little salt, pepper and a dab of kewpie mayo and stuffed into onigiri. Are there any spices or sauces I can add to make it more interesting? Or any other easy tuna recipes I can make for one, preferably with rice? I really enjoy spicy foods and fermented/pickled things, but I’m not sure the best ways to combine that with something like tuna.
Sounds like tuna salad, which is delicious. Add spring onion or red onion or whatever oniony thing you want. Possibly a bit of celery if you’re into that (small pieces so it’s not stringy).
Try some citrus zest and/or juice. The juice is only if the rice isn’t too acidic already.
Oh, and if you’re into spice, sriracha goes on a lot of different things - it is chili sauce with vinegar and garlic, which seems like a good fit. If that isn’t your thing, you can still bring the spice level up with cayenne or whatever chili flake. “Chili powder” could work but often has some un-onigiri-like extra spices.