Prepare an ice-water bath in a large bowl. In a medium saucepan, add the peas to boiling, salted water and cook 1-2 minutes, until the peas are tender-crisp. Strain the peas, and transfer them to the ice-water bath.
In your blender or food processor, combine the remaining ingredients except the lemon juice, and pulse for 30 seconds, until they’re finely minced. Toss the peas with the pesto, and squeeze lemon juice on top prior to serving. Taste for salt.
Notes
The final dish will have less sodium than is calculated here, as much of the salt goes in the water and down the drain when you drain the peas.