Cheesy Kielbasa Pasta Casserole (Freezer Friendly!)

penne pasta

each) packages of kielbasa sausage, halved lengthwise then sliced

extra virgin olive oil

large onion, chopped

medium zucchini, diced

medium carrots, peeled and grated

garlic, minced

jar (24 oz) spaghetti sauce

diced tomatoes

egg, lightly beaten

carton (15 oz) ricotta cheese

shredded cheddar cheese

shredded mozzarella cheese

green onions, sliced