Heat a large skillet or wok over medium-high heat.
Add the ground beef to the hot pan and season with the sea salt and black pepper.
Cook the beef, breaking it up into small crumbles with a spatula, until it is thoroughly browned and cooked through.
Remove the beef from the skillet and set it aside on a plate, draining any excess liquid from the pan.
Return the skillet to the heat and add the toasted sesame oil followed by the broccoli florets.
Add two tablespoons of water to the pan and cover immediately with a lid to steam the broccoli for 2 minutes until it is tender-crisp.
Remove the lid and stir in the minced garlic, grated fresh ginger, and red pepper flakes.
Sauté the aromatics with the broccoli for 1 minute until the mixture becomes highly fragrant.
Return the cooked ground beef to the skillet and pour the coconut aminos over the top.
Toss all ingredients together for 1 to 2 minutes until the sauce is well-distributed and the dish is heated through, then garnish with sesame seeds before serving.