In a pan on the stove, add avocado oil or olive oil and add in your meat (if using). Break up the meat into small pieces.
Once the meat is browned, add in the onion, garlic and marinara sauce. Season with salt and pepper, to taste.
Simmer for 20 minutes, stirring occasionally.
Noodles
Add 4 lasagna noodles to a flat bowl or pan and cover completely with hot water. Allow to sit for 20 minutes.
Note that you may want to rinse your noodles after if using gluten free to remove some of the starch.
Using a mandoline (or very carefully with a knife), cut 4 thin slices of zucchini.
Lay the zucchini out on a towel and sprinkle with salt to "sweat" the zucchini aka bring out the moisture. Sit for 20 minutes then pat down completely with a towel.
Cut the lasagna noodles in half then cut the zucchini slices in half.
Ricotta Spinach Mixture
Add all of the ricotta spinach mixture ingredients listed above (aside from ½ cup of the mozzarella) in a bowl and mix until completely combined.
Assemble the Lasagna
Preheat the oven to 375℉.
Place 4 ramekins on a baking sheet then add ~¼ cup of the sauce into the bottom of each.
Next, place one half of the lasagna noodle on top.
Spoon and spread out ~¼ cup of the ricotta mixture over the top, then sprinkle some mozzarella over it.
Lay down 2 half slices of the zucchini on top of the cheese.
Next, layer the rest of the sauce followed by a lasagna noodle half, the remaining ricotta mixture and half of the remaining mozzarella.
Bake
Cover the ramekins with the lids and bake for 30 minutes.
After 30 minutes, remove the lids, add the remaining mozzarella and bake for 15 minutes uncovered.
Allow to cool slightly and enjoy right away!
Notes
If you'd like to omit the meat, feel free to do so.
You can swap the noodles for zucchini slices if desired.
If you can't have dairy in your diet, simply swap for dairy free alternatives you enjoy.