ADVERTISEMENT
You can easily adapt this basic 5-ingredient framework to what you have on hand. For a slightly sweeter, more caramelized flavor, add 1 red bell pepper, thinly sliced, to the onions in the bottom of the dish. If you prefer a bit of heat, choose hot Italian sausages or stir 1/4 teaspoon crushed red pepper flakes into the sauce mixture. For a richer, almost braised effect, substitute half of the jarred marinara with crushed tomatoes and add a splash (about 1/4 cup) of dry red wine; the alcohol will cook off, leaving depth of flavor. If you’re feeding mixed eaters, use a combination of sweet and hot sausages in the same dish and let guests pick their favorite. You can also swap the dried Italian seasoning for 1 teaspoon dried fennel seed if you want to emphasize that classic sausage flavor.
For make-ahead convenience, you can assemble the entire dish—onions, raw sausages, and sauce—in the glass baking dish up to 12 hours in advance, cover tightly, and refrigerate. Add 5–10 minutes to the covered baking time if you’re starting from cold. Leftovers keep well; cool them quickly, then refrigerate in a covered container for up to 3–4 days, or freeze for up to 2 months.
ADVERTISEMENT
Food safety tips: Always start with fully raw, fresh Italian pork sausages that have been kept refrigerated (at or below 40°F / 4°C) and check the package date. Do not leave raw sausages at room temperature for more than 2 hours (or 1 hour if your kitchen is very warm). When baking, use an instant-read thermometer to confirm the internal temperature of the sausages reaches at least 160°F (71°C) in the thickest part—this is the minimum safe temperature for ground pork.
Avoid tasting the sauce before it has come up to a full simmer in the oven if it has been in direct contact with raw sausage juices. After serving, refrigerate any leftovers within 2 hours and reheat them until piping hot (165°F / 74°C) before eating
ADVERTISEMENT
