Step 1

Bring a large pot of water to a boil

Step 2

Meanwhile, heat a deep, wide pan over high heat

Step 3

Add the olive oil and at the first whisp of white smoke, add the onions, garlic and pepper flakes and saute, stirring often, until translucent, about 2 minutes

Step 4

Add the pasta sauce and bring to a simmer

Step 5

Reduce the heat to low and let simmer while you cook the pasta

Step 6

Add 3 tablespoons salt to the boiling water

Step 7

Add the pasta and cook according to the package instructions until al dente

Step 8

A few minutes before the pasta is ready, add the shredded beef to the sauce and gently heat through, stirring occasionally

Step 9

Season with salt and pepper

Step 10

Using a slotted spoon or tongs, transfer the pasta directly to the sauce

Step 11

Add about ¼ cup of the pasta water

Step 12

Off the heat, gently fold the pasta into the sauce until completely combined and the sauce has thickened, 1 to 2 minutes

Step 13

Plate and serve immediately with lots of grated cheese and chopped parsley