8 stalks celery, cut into 1/4-inch dice
10 roma (plum) tomatoes, cut into 1/4-inch dice
1 cucumber, cut into 1/4-inch dice
1 red onion, cut into 1/4-inch dice
1 green bell pepper, cut into 1/4-inch dice
1 yellow bell pepper, cut into 1/4-inch dice
1 orange bell pepper, cut into 1/4-inch dice
2 tomatillos, cut into 1/4-inch dice
¼ cup lemon juice
¼ cup balsamic vinegar
¼ cup olive oil
1 tablespoon chopped cilantro
½ teaspoon red pepper flakes, or to taste (Optional)
4 leaves romaine lettuce, or as needed (Optional)
Combine black-eyed peas, celery, roma tomatoes, cucumber, red onion, green, yellow, and orange bell peppers, and tomatillos in a salad bowl. Gently stir lemon juice, balsamic vinegar, olive oil, cilantro, and red pepper flakes into the salad. Chill before serving; serve over romaine lettuce leaves.