You can use any type of protein you like in this salad. Some other options include grilled tofu, tempeh, or salmon.You can also use different types of leafy greens. Some other options include spinach, kale, or romaine lettuce.If you don’t have a food processor, you can make the pesto sauce by chopping the basil, spinach, and pine nuts finely and then whisking them together with the olive oil and oat milk.This salad can be made ahead of time and stored in the refrigerator for up to 3 days. When you’re ready to serve, let the salad come to room temperature before adding the pesto sauce.