Every patriotic summer barbeque calls for a seven layer dip!  And this is one of our favorites! Super simple.  Healthier alternative than most.  And great for dipping chips or veggies too!   Ingredients:  1 tub plain Greek yogurt 2 cans refried beans (I used organic vegetarian) 1 16oz jar of salsa Shredded romaine lettuce Black olives, sliced Roma tomatoes, finely diced Taco flavored shredded cheese Blue corn tortilla chips Directions:  In a 13×9 baking dish, spread refried beans evenly across pan.  Top with layer of salsa- 3/4- 1 c.  Add layer of sliced black olives.  Top olives with shredded lettuce then shredded cheese.  Dice Roma tomatoes, set aside.  Spoon Greek…