1-First Step: Gather and Prep Your Mise en Place Preheat your oven to 425°F (220°C) and line a large sheet pan with parchment paper for easy cleanup. Wash and halve 1 lb baby potatoes, cut 3 ears of corn into thirds, and slice 12 oz andouille sausage into 1/2-inch rounds. Peel and devein 1.5 lbs large shrimp if needed or use pre-peeled for speed. Pat everything dry to promote browning. This setup takes 10 minutes and sets you up for success in this one pan old bay shrimp sausage meal.

2-Second Step: Parboil Potatoes and Corn Bring a pot of salted water to a boil. Add halved potatoes and corn pieces; cook for 8 minutes until slightly tender. Drain well and let steam dry for a minute this prevents a watery sheet pan dinner. Parboiling ensures veggies cook evenly alongside quicker shrimp, avoiding underdone centers. For dietary adaptations, skip this for low-carb versions using zucchini instead.

3-Third Step: Season and Toss Ingredients In a large bowl, combine parboiled potatoes, corn, sliced sausage, and shrimp. Drizzle with 1/4 cup olive oil and sprinkle 3 tbsp Old Bay seasoning. Toss thoroughly so every piece gets coated this old bay recipe secret locks in flavor. Taste a bit of seasoning mix and adjust if you prefer milder heat. For kids or seniors, reduce Old Bay to 2 tbsp.

4-Fourth Step: Arrange on Sheet Pan Spread the mixture evenly on the prepared pan, avoiding overcrowding use two pans if needed for larger batches. Place shrimp toward the edges for faster cooking. Halve 2 lemons and tuck them cut-side up among the ingredients for infused steam. This layout crisps potatoes and chars sausage perfectly in your easy old bay sheet pan dinner.

5-Fifth Step: Bake to Perfection Bake at 425°F for 20-25 minutes. Flip everything halfway through for even roasting. Shrimp turns opaque and pink (internal temp 145°F/63°C), potatoes crisp up, and corn sweetens. Check at 20 minutes; add 3-5 more if needed. For extra char, broil 1-2 minutes at the end watch closely to avoid burning. This step creates the signature seafood dinner texture.

6-Final Step: Rest, Garnish, and Serve Remove from oven and let rest 2 minutes flavors meld beautifully. Squeeze roasted lemons over top and scatter chopped fresh parsley. Serve hot with crusty bread or over rice to soak up juices. Pairs well with a refreshing salad for complete meals. Leftovers? See storage tips below. This sheet pan shrimp and sausage shines for gatherings, serving 4-6 easily.