Sear the steak

• Heat olive oil in a pan over medium heat.
• Cook the flank steak strips for about a minute or two on each side.
• Sprinkle each side with kosher salt.

Sauté the aromatics

• Add more olive oil to the pan.
• Sauté the onion and garlic until softened and fragrant.

Build the Alfredo sauce

• Pour in the cream and let it warm through.
• Stir in the butter and Parmesan until melted and smooth.
• Add the rinsed cannellini beans and the seared steak strips and heat through.

Cook the pasta

• Cook the penne in salted boiling water until al dente.
• Drain, keeping a little pasta water aside.

Serve

• Spoon the steak and bean Alfredo over the penne.
• Serve hot.