Shrimp Salad with avocado

Avocado is a great source of protein and filling monounsaturated fat, the good fat we all need, and it goes perfectly with the amazing flavor of the low-Cal shrimp.

All you need is:

2 1/4 tbsp white wine vinegar
1/2 tsp salt
1/2 tsp chili powder
3 tbsp extra virgin olive oil
3 C butterhead lettuce
2 grapefruit
2 avocados
10 oz precooked shrimp
1scallion
4tsp chopped cilantro