Shrimp pasta bake tutorial — boil penne, sauté garlic and shrimp briefly, make tomato cream sauce, toss with pasta, transfer to baking dish, top with cheese, bake 20 min.
This is the seafood pasta I make when I want a dinner that feels special without requiring restaurant-level technique or 3 hours in the kitchen. Shrimp pasta bake is the cozy seafood casserole that turns weeknight pasta into something special-occasion delicious: penne tubes tossed in a creamy tomato sauce made with crushed tomatoes, heavy cream, garlic, shallot, Italian herbs, and a hit of red pepper flakes, layered with plump pink shrimp, topped with mozzarella and parmesan, then baked until golden-bubbly with melty cheese pulls.
Fun fact: the Italian-American “pasta bake” or “pasta al forno” tradition dates back to medieval Sicily, where shepherds and farmers combined leftover pasta with cheese and sauce to create one-dish meals that could be reheated over wood fires. The modern shrimp pasta bake combines two regional Italian traditions: northern Italy’s love of cream-tomato sauces (originally called “rosa”) and southern Italy’s reliance on Mediterranean seafood. The trick to perfect shrimp in a pasta bake is to UNDER-cook them in the sauce — they finish cooking in the oven, where overcooking turns them into rubbery little erasers. Pulling them off the heat while still slightly translucent in the center is the key.
Why this recipe works
Sear shrimp briefly, finish in oven. Searing 60 seconds per side develops flavor on the outside; the oven finishes them gently so they stay tender, not rubbery.
Cream + crushed tomatoes = rosa sauce. The cream tames the acidity of tomatoes while preserving their flavor, creating that signature pink “rosa” sauce that coats pasta beautifully.
Undercook pasta by 2 min. Pasta absorbs sauce while baking and finishes cooking in the oven. Fully-cooked pasta turns to mush.
Ingredients
Serves 6 in a 9×13-inch baking dish.
For the pasta and shrimp
1 lb (16 oz) penne pasta
1 lb (450 g) large shrimp, peeled and deveined (tails off)
2 tbsp olive oil
1/2 tsp salt
1/2 tsp black pepper
1/2 tsp smoked paprika
For the rosa sauce
1 large shallot, finely diced
5 cloves garlic, minced
2 tbsp tomato paste
1 can (28 oz) crushed tomatoes
1 cup heavy cream
1/2 cup pasta cooking water (reserved)
1 tsp dried Italian herbs
1/2 tsp red pepper flakes (optional)
1 tsp salt
1/2 tsp sugar (balances tomato acidity)
For the cheese topping
2 cups mozzarella cheese, shredded
1/2 cup grated parmesan cheese
1/4 cup fresh basil, chopped (for finishing)
Extra parmesan and red pepper flakes for serving
Smart substitutions
Different pasta: Sub rigatoni, ziti, or rotini — anything tubular that holds sauce
Frozen shrimp: Thaw under cold running water 5 min before using
Lighter version: Sub half-and-half for heavy cream (slightly thinner sauce)
Spicier: Increase red pepper flakes to 1 tsp + add 1 tsp Calabrian chili paste
Bring a large pot of well-salted water to a boil. Add penne; cook 2 minutes LESS than package directions for al dente (it finishes cooking in the oven). Before draining, reserve 1/2 cup pasta water. Drain; toss with a teaspoon of olive oil to prevent sticking.
Step 2: Sear the shrimp
Preheat oven to 400°F (200°C). Pat shrimp dry; season with salt, pepper, and paprika. Heat 1 tbsp olive oil in a large skillet over medium-high heat. Sear shrimp 60 seconds per side until just pink (still slightly translucent in centers — they finish in oven). Remove to a plate.
Step 3: Make the rosa sauce
In the same skillet, add 1 tbsp more olive oil. Add diced shallot; sauté 3 minutes until soft. Add garlic and tomato paste; cook 60 seconds until fragrant and the paste deepens in color. Pour in crushed tomatoes, heavy cream, Italian herbs, red pepper flakes, salt, and sugar. Simmer 8-10 minutes, stirring occasionally, until slightly thickened. Stir in reserved pasta water as needed for sauce consistency.
Step 4: Combine and layer
Grease a 9×13-inch baking dish. Add the drained pasta to the sauce; toss until pasta is fully coated. Gently fold in the seared shrimp (don’t break them). Transfer half the mixture to the baking dish; sprinkle with 1 cup mozzarella and 1/4 cup parmesan. Add remaining pasta-shrimp mixture; top with remaining mozzarella and parmesan.
Step 5: Bake until golden bubbly
Bake uncovered 18-22 minutes until cheese is fully melted, bubbly around edges, and golden-brown on top. For deeper browning, broil for the last 1-2 minutes (watch carefully — broilers go from golden to burnt fast).
Step 6: Rest, garnish, serve
Remove from oven; let rest 5 minutes (sauce sets slightly, easier to serve clean portions). Sprinkle with fresh basil. Serve hot with extra parmesan and red pepper flakes on the side, plus crusty garlic bread and a green salad.
Nutrition information
Calories: 620 kcal per serving (1/6)
Protein: 38 g (76% DV)
Carbohydrates: 52 g
Fat: 28 g
Calcium: 30% DV
Iron: 22% DV
Pro tips for the best shrimp pasta bake
UNDERCOOK the shrimp. 60 sec per side until just pink (still translucent inside). They finish cooking in the oven — fully-cooked first = rubbery final.
UNDERCOOK the pasta by 2 minutes. Pasta keeps absorbing sauce and cooking in the oven. Fully-cooked al dente turns to overcooked mush after baking.
Sugar tames tomato acidity. 1/2 tsp sugar is the chef secret to balanced rosa sauce — never optional. Adds zero sweetness, just balances.
Layer cheese in the middle AND on top. Middle layer creates cheesy pockets inside the bake; top layer gives the bubbly golden crust everyone fights for.
Frequently asked questions
Can I make this ahead?
Assemble through Step 4 up to 24 hours ahead. Refrigerate covered. Add 8-10 extra minutes to bake time when going from cold. The shrimp may be slightly less tender after a day of marinating in the sauce.
What size shrimp is best?
Large (31-40 per pound) or extra-large (26-30) work best. Smaller shrimp overcook easily in the oven. Always peel and devein; the tails can stay on for presentation or come off for easier eating.
How long does it keep?
Refrigerator 3 days. Reheat in 350°F oven 15-20 min covered with foil. Microwave works for single servings (2-3 min). Shrimp can get slightly rubbery on reheating — don’t blast on high.
Can I freeze this?
Yes — assemble without baking, freeze tightly wrapped up to 2 months. Thaw overnight in fridge, then bake at 400°F for 40 minutes covered, 10 minutes uncovered. Slightly looser sauce when frozen-then-thawed.
What sides go with this?
Crusty garlic bread is non-negotiable (essential for soaking up sauce). Also amazing with Caesar salad, arugula salad with lemon, or roasted broccoli/asparagus. Sauvignon Blanc or Pinot Grigio pairs perfectly.
Why is my sauce too thin?
Simmer the sauce 3-5 minutes longer in Step 3 before adding pasta (more liquid evaporates). Or use slightly less heavy cream (3/4 cup instead of 1 cup) for a tighter sauce.
