Add the soy sauce, rice vinegar, maple syrup, water, ginger, garlic, sriracha, and cornstarch to a measuring glass or bowl then whisk them together until the cornstarch dissolves.

Heat a skillet over medium-high heat. When the skillet is hot add in the broccoli florets and a 1/4 cup of water. Cover the skillet with a lid and let the broccoli steam for 3 minutes, until it turns bright green.

Once it's crisp tender, remove it from the skillet and onto a plate. Spray the skillet with cooking oil and add in the ground beef. Season with salt and pepper and use a wooden spoon or potato masher to break up the beef and crumble it. Add in the green onions.

Once the beef is cooked through add the broccoli back into the skillet and pour in the teriyaki sauce. Stir everything together until the sauce thicken, about 3 minutes.

Taste for seasoning and top with sesame seeds and additional green onions.