Heat the olive oil in a large skillet over medium-high heat.
Add the ground beef to the skillet, breaking it into small crumbles with a spatula as it browns.
Once the beef is fully cooked, remove it from the pan and set it aside on a plate, leaving any rendered fat in the skillet.
Add the diced onion and red bell pepper to the skillet, sautéing for 4 to 5 minutes until the onion becomes translucent.
Stir in the diced zucchini and minced garlic, cooking for an additional 3 minutes until the vegetables are tender but still crisp.
Return the cooked ground beef to the skillet and stir to combine with the vegetables.
Season the mixture with sea salt, black pepper, dried oregano, and coconut aminos.
Sauté for 2 more minutes to allow the flavors to meld together before serving hot.