Bring a large pot of salted water to a boil. Cook the rigatoni according to the package directions until al dente. Drain and set aside.
In a large skillet over medium heat, warm the olive oil. Add the garlic and red pepper flakes, cooking just until fragrant—about 1 minute.
Pour in the crushed tomatoes and add a pinch of salt. Let the sauce simmer for 15 to 20 minutes, stirring occasionally.
Toss the cooked rigatoni into the skillet and stir until every piece is coated in that spicy, red goodness.
Garnish with parsley and serve hot. Maybe grab a glass of wine—you've earned it.