INGREDIENTS
2 tsp
extra-virgin olive oil
16 oz
sliced cremini (baby bella) mushrooms
1
small red or yellow onion, diced
1
red bell pepper, cored and diced
5 cups
lightly packed fresh baby spinach (about 4 ounces)
2 cloves
garlic, minced
1 15 ounce container
part-skim ricotta cheese
1
large egg
1/2 tsp
kosher salt
1/2 tsp
black pepper
1 1/2 cups
shredded part-skim shredded mozzarella cheese, divided
1/2 cup
freshly grated Parmesan cheese (about 1 1/4 ounces)
2
jars good-quality red pasta sauce, divided
16 oz
uncooked whole wheat ziti or penne noodles (or swap a similar short, hollow noodle—see notes if not using whole wheat)
Chopped fresh basil or parsley, optional for serving