Cheesy Creamy Baked Ziti

Ingredients:

1 (16 oz) package of ziti
olive oil for sprinkling
1 lb Italian sausage (no casings)
5 cloves garlic, minced
1 onion, finely chopped
3 cups your favorite spaghetti sauce
1½ cups freshly chopped spinach (not frozen; coarsely chop)
1 cup plain Greek yogurt
6 oz shredded Monterey Jack cheese
5 oz shredded Mozzarella cheese
½ cup freshly grated Parmesan
¼ cup chopped fresh basil

Directions: