Preheat the oven to 400° and line a sheet tray with parchment paper.
Cut off the stem of the zucchini, cut in half length-wise and scoop out the center with a spoon.
Salt and place cut side down on the parchment paper. Bake for 15-20 minutes or until tender. This is also personally preference on how soft you like your zucchini.
While that is cooking, in a large pan, sauté onion, salt, and pepper in coconut oil over medium heat until it starts to soften- about 5 minutes.
Add the beef and cook until brown. It does not need to be fully cooked as it will continue to cook with the other ingredients.
Add in the tomatoes, cumin, garlic powder, chili powder, oregano, and smoked paprika.
Mix well and cook on medium heat until beef is fully cooked.
Turn down and simmer until the zucchini is cooked.
Take the zucchini out of the oven, flip over, and fill with the meat mixture.