Preheat your oven to 400°F and line a baking sheet with parchment paper.
Peel and cube the sweet potato into half-inch pieces, then roast for 18 minutes until tender and lightly browned.
Slice the beef into thin strips against the grain to ensure every bite is tender.
Heat the avocado oil in a large skillet or wok over medium-high heat.
Add the beef strips to the skillet and sear until browned, then remove and set aside.
Add the broccoli florets to the same pan with a tablespoon of water, covering to steam for 2 minutes.
Whisk the coconut aminos, sriracha, minced garlic, and grated ginger in a small bowl.
Return the beef and roasted sweet potatoes to the skillet.
Pour the spicy sauce over the mixture and stir-fry for 1 minute until the glaze is thick and bubbly.
Garnish with toasted sesame seeds before serving.