Heat the avocado oil in a large skillet over medium-high heat until shimmering.
Add the ground beef to the skillet, breaking it into small pieces with a spatula, and cook until browned and fully cooked through.
Toss in the diced yellow onion and red bell pepper, sautéing for about 3-4 minutes until the onion becomes translucent and fragrant.
Add the sliced zucchini to the pan and continue to cook for another 3 minutes until the vegetables are slightly tender but still hold their shape.
Stir in the tomato paste, garlic powder, smoked paprika, sea salt, and black pepper, ensuring the beef and vegetables are evenly coated in the spices.
Pour in the water to deglaze the skillet, scraping up any flavorful browned bits from the bottom, and simmer for 1-2 minutes until the sauce thickens and coats the mixture.
Remove from heat and serve immediately while hot.