First make the kung pao sauce: Add garlic, red pepper flakes, ginger, apple cider vinegar, soy sauce, coconut sugar, cornstarch, and peanut butter to a medium bowl; whisk until the cornstarch is dissolved. Set aside for later.
Next preheat a large skillet or wok over medium-high heat and add in sesame oil. Once oil is hot, add in red onions and saute for 3 minutes. Then add in brussels sprouts, stir frequently and cook until they begin turning slightly golden brown, about 3-5 minutes. Add in red bell pepper and saute for about 3 minutes. Add salt and pepper to veggies, and then add chickpeas to pan.
Turn the heat to low, then pour the sauce into the pan. Stir frequently as the sauce will start to thicken up after a minute or two. Serve immediately over jasmine rice, quinoa, or brown rice. Garnish with chopped peanuts, green onion, cilantro, and a pinch of red pepper flakes, if desired.
Enjoy!
(recipe adapted from the Ambitious Kitchen)