Prepare your outside grill or inside grill/grilling pan, as necessary.
Cut and prepare all of your ingredients as directed.
Take your smoked turkey sausage and vegetables (bell peppers, mushrooms, onions, tomatoes, asparagus, and jalapenos) and place them in a large mixing bowl, and mix.
In a smaller bowl, add your olive oil, minced garlic, onion powder, garlic powder, cayenne pepper, red pepper flakes, dried parsley, pepper, and salt. Mix until well combined.
Next, add the oil and spice mixture to the large bowl of sausage and veggies. Mix until everything is well-coated.
Grab your skewers and evenly distribute the sausage and vegetables on the eight metal skewers in the pattern of your choice.
(If you are using wooden skewers, make sure to soak them prior to use)
Once the sausage and veggies have been added to the skewers, place them on your grill for approximately 10-20 minutes or until your desired doneness.