Mix together the sour cream, garlic, jalapeno pepper, cilantro, taco seasoning, hot pepper sauce, and 1/2 of the lemon juice in a bowl until well blended.

In another bowl, mash the avocado with the remaining lemon juice; set aside.

Spread the shredded lettuce over a 12-inch serving platter.

Layer the black beans evenly on top, followed by the Mexican-style corn.

Spread the prepared sour cream mixture over the corn.

Gently spread the avocado mixture on top of the sour cream.

Pour the salsa evenly over the avocado mixture.

Sprinkle the Mexican cheese blend, olives, green onions, and tomato on top.