Combine the onion, garlic, jalapeno, lime juice and 1/2 teaspoon salt in a bowl. Set aside. Peel and pit the avocados and cut into 1/2-inch pieces. Gently stir the avocado and oil into the bowl until the avocado is dressed.
This recipe was provided by professional chefs and has been scaled down from a bulk recipe provided by a restaurant. The Food Network Kitchens chefs have not tested this recipe, in the proportions indicated, and therefore, we cannot make any representation as to the results.