Kidney Bean and Cilantro Salad with Dijon Vinaigrette

kidney beans, drained and rinsed

English cucumbers, chopped

Medium-sized heirloom tomato, chopped

bunch fresh cilantro, stems removed, chopped (about 1 1/4 cup)

red onion, chopped (about 1 cup)

large lime or lemon, juice of

Private Reserve Greek extra virgin olive oil

Dijon mustard

fresh garlic paste, or finely chopped garlic

sumac

Salt and pepper,