Wash and trim green beans, and blanch them in boiling water for 2 minutes (if using fresh beans). Drain the beans and set them aside to dry. If you’re using frozen beans, run them under warm water until they’re soft and set aside.
Mix all the spices together. This will make more seasoning than you’ll need, so set aside the rest and use it later.
Toss the green beans with the olive oil. Add the spice mix a teaspoon at a time, tossing the beans well between each addition.
Place wire racks on a cookie sheet. Spread the beans out on the racks so that the don’t touch, and bake at 395 degrees for 35 minutes. After 20 minutes, check the beans and remove any smaller ones that are already crispy and brown. Keep checking every 5 minutes to make sure your beans are crispy but not too brown…you may need a few more minutes or a few less, depending on the size of the beans, humidity, etc.
Remove the beans and allow them to cool. Enjoy them warm, or keep them in an airtight container. If they’re 100% crispy with no soft spots, you can keep them out on the counter…but if there are any softer spots, keep them in the fridge. I usually keep them in the fridge, just to be safe.