Chopped Greek Chicken Salad

Name: Chopped Greek Chicken Salad
Prep time: 20 min
Total time: 20 min
Cuisine: Mediterranean
Ingredients: 1 head baby romaine lettuce, diced ((or half of one large head)); 1 medium tomato, diced ((I used yellow tomatoes for color)); 1 small red pepper, diced; 1 1/2 cups diced cucumber; 1/4 cup diced red onion; 1 1/4 lb cooked chicken, diced; 1/2 cup crumbled feta; 1/3 cup kalamata olives; 1/4 cup avocado or olive oil; 1/4 cup red wine vinegar; 1 tbsp lemon juice; 2 cloves garlic, minced; 2 tsp Dijon mustard; 1/2 tsp dried majoram; Salt and pepper to taste