The trick to making these crunchy is to ensure they are as dry as can be. Spread them out onto paper towels after they are rinsed and blot the water. Then let air dry for half an hour.
Raid your spice drawer for whatever you have on hand. My standard spice mix is cumin, onion powder, smoked paprika, chili powder and garlic salt. But get creative and combine whatever spices you like!