While the beef is browning, take the squash and cut the bulbous end off. This is where all the seeds live. Cut off the top (where the stem is) and then peel the squash. Set the squash on its side and cut it into thin rounds.
Once the beef is browned, add the garlic and saute for an additional 2 minutes. Add salt and pepper and stir.
Add the full jar of pasta sauce to the meat and allow to simmer on low for 5 minutes.
Grab a 9Γ9 oven safe baking dish. It’s time to layer! First add the squash, layering it on the bottom without any overlap. Then add the ground beef and sauce mixture. Lastly add a layer of mozzarella. Repeat!
The last ingredient on the top should be the sauce.
Bake for 35 minutes. Then remove the lasagna and add a layer of cheese to the top. Put it back in the oven and allow the cheese to get all meltly and bubbly (about another 10 minutes).
Remove from the oven and let the lasagna set for 15 minutes if you can – this will help the liquids to set π