Prep the vegetables – thinly slice the red onion and red bell pepper. Also wash and cut the broccolini into 2” long pieces. Feel free to keep the broccolini long if you prefer. 

In a cast iron or large pan, heat on medium high heat. Add one tablespoon of neutral oil, then add the red onion and bell pepper. Let cook for 1-2  minutes, then push to one corner of the pan. 

Add the ground beef to the remaining area of the pan. Season with several pinches of kosher salt (I always think 1 teaspoon of kosher salt per 1 lb of meat), garlic powder, and paprika. Let brown and begin to break up with a wooden spoon. 

Once the beef is slightly browned, about 2-3  minutes, also push this to a corner of the pan, then add the broccolini. If you prefer, you can cook the broccolini in a separate pan (or after the beef and it finishes). I find that for one person, everything fits in one pan 🙂 Stir the broccolini around so it’s nicely coated in the remaining beef fat, then let cook for 2-3 minutes. 

On another burner, char the tortilla. I lay this directly on my gas stove for 3-4 seconds per side.

Assemble the tacos by placing a generous couple spoonfuls of cooked beef on the tortilla. Add a spoonful of the red peppers on top. Add the broccolini on the side, top with sour cream or salsa  as desired, and enjoy!