Mix above in a large bowl. Whisk together about 1/2 cup of vegan mayonnaise with about 1/4 cup olive oil and at least a teaspoon of cumin. Pour this over the vegetables and toss. Add salt and pepper as desired.
Heat a little oil in a skillet and cook the tilapia. Fill individual salad bowls with fresh greens, place a piece of fish in each bowl, and top with a heaping serving of slaw.