Mix the cream cheese, sour cream, salsa, and taco seasoning together in a mixing bowl. Add more taco seasoning to taste, up to 1 tablespoon more.
Spread the dip base into a shallow dish, like a pie plate, in an even layer.
Top the dip with lettuce, tomatoes, olives, jalapeno, corn, black beans, and cheese. Serve immediately with tortilla chips for dipping.
Notes
If you want to prep this dip ahead of time, make the dip base and spread it out in the serving dish. Cover with plastic wrap and chill it in the fridge. You can prep all the toppings and keep them in their own containers in the fridge. Once you're ready to serve, unwrap the dip base and top as directed just before serving.