Make the dressing: Transfer the red wine vinegar, hemp hearts, nutritional yeast, mellow miso, garlic, chives, parsley, lemon juice, water, and date syrup to the canister of a blender. Blendon high until smooth.
Combine: Place the lentils, kidney beans, black beans, bell pepper, tomatoes, artichoke hearts, sun-dried tomatoes, shallot, capers, parsley, and pumpkin seeds into a large bowl.
Dress: Add about two-thirds of the dressing and mix to combine. Add more dressing as desired.
