In a large
pot
of boiling salted water, cook
spaghetti
according to package instructions. Drain. In a large
bowl
, combine
ground beef
with
bread crumbs
,
parsley
,
parmesan
,
egg
,
garlic
,
kosher salt
, and
red pepper flakes
. Mix until just combined, then form into 16 balls. In a large
pot
over medium heat, heat
extra-virgin olive oil
. Add the meatballs and cook, turning occasionally, until browned on all sides,
10 minutes
. Transfer the meatballs to a plate. Add
onion
to the pot and cook until soft,
5 minutes
. Add
crushed tomatoes
,
baby bella mushrooms
, and
bay leaf
. Season with salt and
black pepper
and bring to a simmer. Return the meatballs to the pot and cover. Simmer until the sauce has thickened,
8-10 minutes
. Serve the pasta with a healthy scoop of meatballs and sauce. Top with more
parmesan
before serving.