Grapefruit Salad with Fennel, Avocados, and Red Onion — Three Many Cooks

Ingredients

• 4 large grapefruits, peeled, sectioned, and 2 tablespoons juice reserved
• 1 avocado, cut into medium dice
• ¼ large fennel, thinly sliced, plus a few fronds for garnish
• ¼ small red onion
• Salt and ground black pepper
• A few drops lime or lemon juice