Drain the salsa in a fine mesh sieve to remove excess liquid
Stir together taco seasoning, whisk taco seasoning into sour cream until combined.
Make guacamole: Mash avocados with other guacamole ingredients until combined.
Layer the ingredients in the following order: 1. Beans2. Sour Cream mixture3. Guacamole4. Salsa5. Cheese6. Olives7. Green Onions8. Cilantro (optional)
Serve right away with tortilla chips for dipping.
If you do not want to make your own taco seasoning, you can use store bought.If you do not want to make guacamole, you can use 1.5 cups of prepared guacamole.7 layer dip is best served the day it is made. Leftovers can be kept tightly covered in the fridge for 3-4 days.