Identify your dish type: soup/stew (needs hold), salad (needs fresh snap), or casserole/sauté (needs quick softening).
Match texture first: use frozen sweet peas for the classic pea pop, or sugar snap/snow peas for a similar green bite.
Measure with the listed ratio, then adjust cooking time: cook firmer swaps (edamame/beans) 2-4 minutes longer than you would peas.
If your substitute is wetter (spinach or beans), drain and/or squeeze first so the dish doesn’t thin out.
Taste and correct: peas are mildly sweet—add a pinch of sugar or a little salt/acid (lemon) to bring the flavor into line.