Great for using a lot of leftover steak in a healthy, filling pasta dish!
Cook pasta according to the package directions.
Meanwhile, add butter to large skillet and melt. Add garlic and cook about 1 minute until fragrant.
Whisk in flour and cook another 1 minute.
Add milk and simmer until thickened, about 5 minutes. Mix in basil and parmesan.
Add tomatoes and leftover steak and cook another 2 minutes. Then, wilt in spinach.
Mix in cooked pasta, serve and enjoy!