1. preheat oven to 425 degrees.
2. peel kohlrabis and cut into fry-sized spears.
3. drizzle olive oil (less than a teaspoon — just enough to coat), and toss in bowl.
4. sprinkle chili powder, cumin, and sea salt, and toss again to coat evenly.
5. spread evenly on cookie sheet, and bake in oven for 30 minutes or so, until desired tenderness.
6. serve with chipotle mayonnaise or lime-cilantro-yogurt sauce.