Blanch the frozen peas in a pot of boiling salted water for 2-3 minutes. Then rinse in ice water or rinse well with cold water and drain.

Dice the onion as finely as possible. Cut the tomato into slightly larger cubes. Roughly chop the cilantro.

Blend the peas with the lime juice using a food processor or hand blender. Depending on your own preference, the guacamole can be blended very smooth or still have a few pieces of peas. Add onion, tomato and remaining ingredients and stir everything by hand. The green pea guacamole is ready.