Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Trim the ends off the Brussels sprouts and cut them in half vertically to ensure they get maximum surface area for browning.
Place the sprouts on the baking sheet and toss with olive oil, sea salt, and black pepper until evenly coated.
Spread the sprouts in a single layer, cut-side down, and roast for 20 to 25 minutes until the outer leaves are charred and crispy.
While the sprouts roast, dice the pancetta and add it to a cold skillet, then turn the heat to medium to slowly render the fat until crispy.
Remove the crispy pancetta with a slotted spoon and set aside, leaving about a teaspoon of the rendered fat in the pan.
Season the chicken breast with a pinch of salt and sear in the same skillet for 6 to 8 minutes per side until the internal temperature reaches 165°F.
In a small jar or bowl, whisk together the balsamic vinegar, honey, and minced garlic to create a thick glaze.
Once the chicken is rested, slice it into strips and combine in a large bowl with the roasted sprouts and crispy pancetta.
Pour the balsamic glaze over the mixture and toss gently to coat everything before serving warm.