Gather your supplies. If you don't have fresh basil you can use 2 tablespoons dried basil.
Mix together ricotta, egg, basil, rosemary, pepper and 1 cup of the Parmesan in a medium sized bowl.
Spread 1/4 cup sauce at the bottom of your pan
Add three noodles on top of sauce and top each noodle with 3 tablespoons of the ricotta mixture.
Spread ricotta mix evenly
Sprinkle on one cup of mozzarella.
Spoon in 1 1/2 cups sauce and spread evenly .
Repeat steps 4 through 7 three more times.
For the final layer, lay down three noodles, top with remaining sauce, sprinkle on remaining mozzarella and 1/4 cup Parmesan cheese.
Cover your lasagna with tin foil. If you're feeling extra ambitious, you can put a teaspoon of olive oil on the foil and spread around with a paper towel to keep cheese from sticking to the foil.
Bake at 375 for 40 minutes.
Serve with a green salad and white wine and/or sparkling water!