Bring a medium pot of water to a boil, salt liberally. Add frozen peas and cook only until thawed, still bright green, about 1-2 mins. Drain.
In a food processor, add cooked peas, fresh mint leaves, zest and juice of lemon, garlic, olive oil, tahini. Season with salt and pepper, to taste.
Serve with a handful of whole cooked peas, a few mint leaves, and an extra drizzle of olive oil. Store in the fridge for 5-6 days.