This is a Cuban recipe from Three Guys from Miami Cook Cuban. Make sure to use an extra virgin olive oil and don't forget to salt and pepper the dressing. This salad gets its sweetness from pineapple and a bit of sour flavor from the oil and vinegar
Combine olive oil, vinegar, orange juice, and sugar in a blender until smooth. Add salt and pepper to this mixture to taste. Lightly toss the lettuce, pineapple, and red onion together. Pour on the oil and vinegar mixture until everything is well coated. Adjust the amount used to your own preference, more or less.
Garnish individual salads with several avocado slices lightly seasoned with salt and pepper and a squeeze of lime juice.