Cook beans and peas until tender-crisp. Run under cold water immediately after draining to stop the cooking process. Drain, set aside.
Divide all salad ingredients into 4-6 bowls. Whisk all dressing ingredients together, using just enough oil until you get the consistency you desire, then drizzle over salad.
Notes
Replace sour cream with silken tofu, full fat canned coconut milk, or cashew cream for dairy free version