Identify whether your dish needs Fresno for fresh pepper flavor (slices/dice) or mainly for heat.
Start with the closest 1:1 fresh-pepper swap (Anaheim or jalapeño), then seed more if you’re sensitive to heat.
If your recipe benefits from a softened, rounder profile, roast poblano first, then dice to mimic Fresno texture in cooked dishes.
For banana pepper, keep slices chunky for better mouthfeel—Fresno is usually used as actual pepper pieces.
For flakes/powder, add in small increments, then taste after cooking 2–3 minutes to avoid overspicing.