Place steak on a plate and pat dry with a clean paper towel.
Season generously with kosher salt and ground black pepper.
Bring large cast iron skillet to medium-high heat. Add ghee (or olive oil) and swirl to coat the pan.
Sear steak pieces on both sides, approximately 1-2 minutes per side (depending upon thickness). You don't want to cook them all the way through, just sear them. Remove from skillet and place on a plate; set aside for later.
Add broth to pan to deglaze the bottom; be sure and scrape up any bits that are stuck to the. bottom.
Add the garlic and move around the pan until fragrant, about 30 seconds.
Add red onion, red bell pepper, curry paste, coconut milk and lime juice. Use a whisk to combine.
Add beef back in along with any juices that have settled on the plate. Let simmer 5-10 minutes or until cooked to your liking.
Meanwhile, cook your rice noodles according to their package instructions. Drain and set aside.
Add in basil to curry mixture; stir to combine.
Taste and add additional kosher salt, as needed.
Serve over rice noodles.
Garnish with fresh lime slices and additional chopped basil.
Video
Notes
*Steak: you can use sirloin, ribeye, york strip here - other cuts will work, just ensure they aren't too tough.
Dairy-Free: to make this dairy-free simply opt for the olive oil instead of the ghee.
Cast Iron Skillet: you could easily make this in a dutch oven as well.
Coconut milk: if your coconut milk has separated in the can simply pour out into a bowl and use a whisk or immersion blender to recombine before using.
Rice Noodles: you can also serve this plain, with cauliflower rice or with regular rice!
Paleo/Whole30: to serve paleo/Whole30 simply serve with cauliflower rice or serve plain!