When I was in High School (late 70's) this was a very popular recipe. We made it a lot in my house. Several years back my friend would bring this to get together's and it would bring back so many memories. I found a recipe that fits it.
Brown beef, drain. Add contents of taco seasoning with 1 cup water. Simmer 10 minutes. Let ground beef cool. Chop tomato in bite size pieces. Crush taco chips, mix all ingredients and mix together. Add salad dressing right before serving.