Pescatarian wholefood ideas for meals please?

fknlardarse

I posted this under food and nutrition but might be better here.

Hi, we're trying to cut out processed food and eat all wholefoods. We're pescatarian (ish), not fanatical about it, occasionally eat organic meat but it's not a regular feature, I've been using a lot of quorn for stir fries and savoury salads but I'm rapidly going off the idea as it is definitely processed but I'm short on ideas to replace it.
Would appreciate any ideas for natural meals that are relatively cheap, quick but most of all nutritious.
I haven't used tofu much so ideas on how to use that in a TASTY way would be good.
We like salads, stir fries, noodles, ramen, eggs, cheese (does this count as a wholefood? I'm guessing not?), tuna, cod, prawns, all vegetables, oats, fruits and nuts, olive oil etc.
Thank you x