Combine all the ingredients in a blender and blend for 2 minutes until smooth. Taste and adjust salt and pepper as needed and set aside.
For the meat:
Place a medium skillet over medium high heat and add the olive oil. Add the onions and sauté for 5 minutes until soft. Add the garlic and sauté for 30 seconds more. Add the ground chicken or turkey and continue to cook for 6-7 minutes until fully cooked. Add the taco seasoning and the water and reduce heat to low. Simmer the mixture for 5 minutes while you assemble the salad.
For the Salad
If you’re layering this in one large serving bowl, layer half of the lettuce on the bottom followed by half of all the other toppings. Add the next layer of lettuce on top and finish with the remaining toppings. Top with the meat and toss together with a few tablespoons of the vinaigrette. Add more as needed and serve immediately.