Grilled Shrimp and Asparagus Kebabs

Ingredients

• 1/4 cup extra-virgin olive oil
• 1/2 teaspoon dried oregano
• 1/2 teaspoon dried thyme
• 1/2 teaspoon cayenne
• 1/2 teaspoon chili powder
• 2 teaspoons cumin
• 2 teaspoons kosher salt
• 1 1/2 to 2 pounds shrimp (deshelled)
• 1-2 bunches asparagus (woody ends removed)
• 1 onion cut into bite sized pieces.