ground turkey cooked with taco seasoning
crushed tortilla chips
If I'm feeling crazy I will use nacho cheese Doritos in place of the tortilla chips. If you want it to be more healthy, leave out the chips and just stick with the salsa and skip the ranch. I like to serve all the components in separate bowls so everyone can make their own salad to their liking.
My kids are fairly picky eaters. Our rule is simply choose something from the table to eat and eat what you put on your plate. This is what Clara's taco salad looked like: