Combine tomatoes, green bell peppers, red bell pepper, cucumber, olive oil, red onion, scallions, lemon juice, parsley, mint, dill, vinegar, garlic, sumac, salt, and pepper in a large bowl; mix thoroughly.
Step: 2
Chill tomato mixture until flavors combine, about 25 minutes.
NUTRITION FACT
Per Serving: 290 calories; protein 2.1g; carbohydrates 11.5g; fat 27.4g; sodium 49.3mg.