Identify your use: browning/stacking, smooth melting, or quick melt in baking; pick the substitute with the closest behavior (slice-sear vs. shred-melt).
Use the ratio from the WPRM table: apply 1:1 for closest matches, and use ¾:1 when the substitute is milder or less tangy.
Prep for best texture: grate firm cheeses, pat brined/semi-firm options dry, and thin-layer so the dish browns instead of steaming.
Adjust flavor after swapping: if it tastes flat, add salt in small increments; if it’s too mild, add a tiny splash of lemon or vinegar to the sauce.
For baking, increase surface browning by broiling 1–2 minutes at the end if your substitute doesn’t naturally color as strongly.