Add 2 Tbsp cooking oil to a medium skillet and warm over medium, high heat. Add the sliced onions and toss until well combined. Let the onions sauté (covered) for 15-20 minutes, stirring every 5 minutes.

Meanwhile, to prepare the Brussel sprouts, combine the chopped Brussel sprouts, maple syrup, 1 Tbsp cooking oil and sea salt in a bag and shake until the Brussel sprouts are well coated…

Add the Brussel sprouts to the basket of the air fryer and cook on 400 degrees for 9 minutes.

Arrange the Brussel sprouts on a parchment lined baking sheet. Bake on 425 degrees for 20 minutes.

While the onions and Brussel sprouts are cooking, cook the beef hot dogs as desired (grill, microwave, pan sear, etc.), and heat the buns. (I like to spray my hot dog buns with a little oil spray and place under the broiler for 2-3 minutes.)

Note: If you want even more veggies in the hot dog, you can swap the traditional bread bun for a sweet potato! Simply steam the whole sweet potato in the microwave and slice down the middle. (See picture.)

Place each hot dog in the bun

Top with onions and the crispy Brussel sprouts.