Boil rotini in salted water until al dente. Drain and set aside, reserving 1/2 cup of pasta water.
Sear the Steak Bites:
Season steak pieces with salt and pepper. Heat olive oil and butter in a skillet over medium-high heat. Add steak in a single layer and sear for 2-3 minutes per side or until browned and cooked to your desired doneness. Add minced garlic during the last minute of cooking. Remove steak and set aside.
Make the Sauce:
In the same skillet, melt 3 tablespoons of butter over medium heat. Add garlic and sauté for about 1 minute. Stir in flour and cook for 1 minute to form a roux. Gradually whisk in milk and cook until thickened, about 4-5 minutes.
Finish the Sauce:
Stir in Parmesan cheese and season with salt, pepper, and red pepper flakes if using. If the sauce is too thick, stir in a bit of reserved pasta water.
Combine Everything:
Add drained rotini and steak bites to the skillet. Stir gently until everything is well coated in the sauce and heated through.
Serving and Storage Tips
Boil rotini in salted water until al dente. Drain and set aside, reserving 1/2 cup of pasta water.
Sear the Steak Bites:
Season steak pieces with salt and pepper. Heat olive oil and butter in a skillet over medium-high heat. Add steak in a single layer and sear for 2-3 minutes per side or until browned and cooked to your desired doneness. Add minced garlic during the last minute of cooking. Remove steak and set aside.
Make the Sauce:
In the same skillet, melt 3 tablespoons of butter over medium heat. Add garlic and sauté for about 1 minute. Stir in flour and cook for 1 minute to form a roux. Gradually whisk in milk and cook until thickened, about 4-5 minutes.
Finish the Sauce:
Stir in Parmesan cheese and season with salt, pepper, and red pepper flakes if using. If the sauce is too thick, stir in a bit of reserved pasta water.
Combine Everything:
Add drained rotini and steak bites to the skillet. Stir gently until everything is well coated in the sauce and heated through.
Serving and Storage Tips