Zucchini Lasagna

INGREDIENTS

1 lb

93% lean ground beef

1 1/2 tsp

kosher salt

1 tsp

olive oil

1/2

large onion, chopped

3 cloves

garlic, minced

1 28 ounce can

) crushed tomatoes

2 tbsp

chopped fresh basil

black pepper,

medium (8 ounces each) zucchini, sliced 1/8″ thick

1 1/2 cups

part-skim ricotta

1/4 cup

Parmigiano Reggiano

large egg

16 oz

shredded part-skim mozzarella cheese