Preheat your oven to 425 degrees.
Cook the ziti to al dente according to package instructions.
In a small bowl, mix together the eggs, garlic, parsley, and ricotta until combined.
Once the ziti is cooked, drain it well and mix it with the pasta sauce.
Grease a casserole dish with cooking spray and add half of the ziti/sauce mixture to it.
Spread out the ricotta mixture in an even layer over the ziti.
Sprinkle on the freshly grated parmesan cheese.
Add the rest of the ziti on top.
Sprinkle the mozzarella over the top of the remaining ziti.
Bake the ziti at 425 degrees for 15-25 minutes, until browned and bubbly (be sure to check on it often towards the end of cook time to avoid burning)