Segment grapefruit in to pieces by carefully peeling off skin (be sure to remove the white segment) and segment into slices. Slice avocado and set aside.
Whisk together olive oil, lemon juice, shallot, and salt and pepper. Set aside.
Lightly toss all ingredients together in a large bowl and serve immediately.
Recipe by The Sunny Side Up Recipes at https://www.thesunnysideuprecipes.com/grapefruit-avocado-salad/