Tex-Mex Cornbread Salad

Name: Tex-Mex Cornbread Salad
Prep time: 15 min
Cook time: 20 min
Total time: 35 min
Cuisine: TexMex
Ingredients: 1 cup mayonnaise (I prefer Duke's or Blue Plate); ½ cup plain Greek yogurt (or sour cream); 3 tablespoons taco seasoning; 1 head Romaine lettuce (chopped or Iceberg (6 to 8 cups)); 1 can (15 ounces) black beans; 1 can (15 counces) corn; 2 medium Roma tomatoes; 2 whole green onions (thinly sliced); 1 medium avocados; 1 box Jiffy corn muffin mix (+ ingredients to make (1 egg, ⅓ c milk)); 1 cup cheese (I used cheddar, shredded); 2-3 cups chicken (cooked & chopped, optional); ¼ cup crispy jalapeno (or fried onions, optional); ½ medium lemon or lime (to squeeze on avocado)