|If using chia gel in place of oil, combine 0.75 teaspoon chia seeds with 2 tablespoons of water. Mix well and set aside.|
|In a small saucepan, bring the vinegar to a simmer. Add red onion and salt and remove from heat. Allow to cool completely. Drain onions, reserving liquid in a small bowl. Add olive oil (or chia gel) and basil and whisk together.|
|In a large bowl combine reserved onions, spinach, quinoa, roasted red pepper, mango, pineapple and avocado. Toss with dressing and top with nuts if desired.|
Wait to top the salad with avocado until just before serving to prevent discoloration.