To make the kabobs, I just freeze the steaks about an hour so it firms up, then trim and cube it up (they are much easier to trim when partly frozen). Then the steak (this was 3 medium size sirloins about a pound and a half), goes in a pyrex dish with a third a bottle of the marinade (or enough to cover them half way) for 2-4 hours in the fridge to marinate. The cubes should be turned once during that time if possible, but sometimes I forget and they still turn out fine. Then when I start to prep the veggies, I take the steak out of the fridge so it's not so cold before it goes in the oven. It also helps to soak some bamboo skewers in water for about 10-30minutes prior to starting to assemble the kabobs. I use a roughly cut up red onion, a green and red bell pepper and a medium zucchini (or whatever veggies are around and can grill well). Before everything goes into the air fryer, I give the veggies a spray with some olive oil on the top and bottom sides.
After that I just air fry it for 375°F for about 12 minutes (or until they are at least 140 to 160°F inside for medium to well done). Very simple and easy clean up meal which can make a couple of sirloin steaks feed several people. I usually make this with Zatarains Yellow Rice and if I have time will add a cucumber salad (with some Feta Cheese sprinkled on top).
The cornbread muffins are also Gluten Free and are the best I have tried (Simple Truth Organic Cornbread Mix), I pretty much have to make these muffins every few weeks to keep some family members happy :D