Step 1

Sauté the beef with onion, garlic, salt, pepper. Added crushed tomatoes, bay leaf and cheese rind, stir. Pierce the spaghetti squash all over with a knife and place over the sauce. Cook high pressure 15 minutes, or until the skin of squash easily gives when pressed with a spoon. Let the pressure release, discard bay leaf and rind and transfer the squash to a bowl to let cool.

Step 2

When cool enough to handle, cut in half with a large knife, discard the seeds and scoop the strands out with a fork. Place in a colander to drain well (I use paper towels as well to soak up any excess moisture) then serve sauce over squash with grated cheese if desired.

Step 3

For the slow cooker, saute meat as above in skillet, transfer to slow cooker with remaining ingredients as listed above and cook low 6 to 8 hours.