I still remember the first time I packed these spicy, sizzling Cajun shrimp and sausage boxes for my husband’s marathon training weekends. He’d come home after 18 miles of pavement, peel open the lid, and the aroma of paprika, oregano, and caramelized peppers would fill the kitchen like a victory parade. Fast-forward five years and this dish has become our Sunday ritual: I’ll brew a big pot of coffee, turn on New-Orleans jazz, and sear tray after tray while the kids snap the lids onto glass containers. We call it “stack-able gumbo” because every portion tastes like a backyard shrimp boil, yet it’s tidy enough to slip into backpacks, lunch totes, or the freezer for those nights when Uber-Eats is calling your name. If you need a punchy, protein-packed meal-prep hero that freezes like a dream and reheats in two minutes flat, you’ve just met your weekday savior.

Why This Recipe Works

One-Sheet-Pan Magic: Everything roasts together—zero stove splatter and only one pan to wash.
Layered Cajun Flavor: Butterflying the shrimp and pre-tossing in oil lets the spices bloom so every bite tastes like Louisiana sunshine.
Protein + Veg Balance: Each 450-calorie portion delivers 34g of lean protein plus two full cups of bell peppers for fiber and crunch.
Freezer-Friendly: Cool, vacuum-sealed boxes keep for 3 months; microwave from frozen in 2½ minutes or skillet-reheat in 5.
Budget-Smart: Swap half the shrimp for extra sausage or even tofu and you’ll still feed six for under $3.50 a serving.
Customizable Heat: Dial the cayenne up for fire-eaters or sub sweet paprika for kiddos—seasonings cling beautifully to every curve.

Ingredients You'll Need

The beauty of this sheet-pan supper is that every component pulls double duty: the shrimp brines in salt and lemon while the sausage renders smoky fat that seasons the vegetables. Below, I’ve listed exactly what you need plus my grocery-shopping notes so you can choose the freshest seafood and the snappiest sausage.

Raw Shrimp (1 lb, 26-30 count): Buy peeled-deveined but leave the tails on; they act like little handles so you can flip quickly without overcooking. Wild-caught Gulf shrimp tastes sweetest, but any sustainably farmed variety works. Thaw overnight in the fridge or submerge (in the bag) in cold water for 15 minutes.

Andouille Sausage (12 oz): Traditionally pork, but turkey andouille cuts saturated fat by 60 percent and still carries that pepper-garlic punch. Look for a natural casing; it keeps the sausage juicy under high heat.

Bell Peppers (3 large, mixed colors): I reach for one red (sweet), one yellow (mild), and one green (grassy). Slice into ¾-inch strips so they stay al dente after roasting.

Red Onion (1 medium): Wedges hold together better than diced pieces, and their sweetness intensifies as the edges char.

Avocado Oil (3 Tbsp): Refined avocado oil has a 500°F smoke point—perfect for 450°F roasting. Olive oil is fine but may taste slightly bitter at this temp.

Homemade Cajun Seasoning: 1 tsp each smoked paprika, sweet paprika, dried thyme, dried oregano, plus ½ tsp cayenne, ½ tsp black pepper, 1 tsp kosher salt. Mixing your own lets you tame the heat and skip the excess sodium in store blends.

Fresh Garlic (3 cloves, minced): Add only during the last 5 minutes so it perfumes the pan instead of scorching.

Lemon (1, half juiced, half sliced): Juice goes into the quick brine; thin slices roast alongside for caramelized brightness.

Cooked Brown Rice or Cauliflower Rice (optional base): Not mandatory, but a ½-cup scoop under the shrimp soaks up all those spicy juices.

Optional Garnishes: Thinly sliced scallions, chopped parsley, or a whisper of grated Parmesan if you’re feeling rebellious.

How to Make Meal Prep Cajun Shrimp And Sausage With Bell Peppers

Brine the Shrimp

In a medium bowl whisk 2 cups cold water with 1 Tbsp kosher salt and juice of ½ lemon until the salt dissolves. Add shrimp, making sure they’re submerged, and chill 10 minutes while you prep the vegetables. This step seasons the flesh all the way through and keeps it plump during the high-heat roast.

Preheat & Prep Pans

Place two sheet pans in the oven and preheat to 450°F (232°C). Heating the pans first jump-starts caramelization and prevents sticking. Line them with parchment if your pans are prone to hotspots.

Slice & Season Veggies

Toss bell-pepper strips and onion wedges in a large bowl with avocado oil, smoked paprika, dried thyme, and ½ tsp salt. The oil acts like glue, adhering spices to every curve and encouraging blistered edges.

Sear the Sausage

Pat sausage coins dry; moisture is the enemy of browning. Carefully spread them on the hot sheet pans and roast 6 minutes. Flip with tongs, add peppers/onions in a single layer, and return to oven for 10 minutes.

Season & Drain Shrimp

Drain shrimp and pat very dry. Toss with remaining Cajun seasoning and 1 Tbsp oil. Wet shrimp will steam instead of sear, diluting flavor.

Add Shrimp & Garlic

Scatter shrimp plus minced garlic and lemon slices over the vegetables. Roast 5–6 minutes until shrimp curl into a “C” and reach 120°F internal temp—carry-over cooking will finish them while they rest.

Rest & De-glaze

Remove pans, add ¼ cup water or chicken stock, and stir with a wooden spoon to lift the flavorful fond. This creates a light sauce that keeps everything moist during storage.

Portion & Cool

Divide rice among six 3-cup glass containers. Top with shrimp-sausage mixture, spooning pan juices over. Let cool 20 minutes uncovered to avoid condensation, seal, and refrigerate up to 4 days or freeze up to 3 months.

Expert Tips

Size Matters

Stick with 26-30 count shrimp; larger ones need longer roast times and can leave the veggies soggy.

Hot Pan = Char

If your oven runs cool, switch to convection or broil the last 90 seconds for blistered edges.

Don’t Skip the Brine

Even 5 minutes of saltwater brining seasons the flesh and helps prevent rubbery texture.

Vacuum Seal for Freezer

Removing air prevents frost crystals and keeps the Cajun spices potent for months.

Reheat Low & Slow

Microwave at 70% power for 2 minutes, stir, then 30-second bursts to avoid overcooking shrimp.

Add Greens at Lunch

Stir in a handful of baby spinach after reheating; residual heat wilts it perfectly.

Variations to Try

Chicken & Shrimp Duo: Replace half the shrimp with 1-inch cubes of boneless thighs; increase roast time to 12 minutes before adding shrimp.
Low-Carb Zoodle Base: Swap rice for spiralized zucchini; add raw zoodles to containers and let the hot shrimp steam them just before eating.
Vegetarian Creole: Use cubed tofu and meatless andouille; brush with smoked paprika oil to mimic traditional depth.
Creamy Cajun Alfredo: Stir 2 Tbsp light cream cheese into the hot pan juices before portioning for a silky finish.
Extra-Veg Boost: Add 1 cup sliced zucchini or mushrooms during the final roast; they’ll absorb the sausage fat and spices.

Storage Tips

Refrigerator: Airtight glass containers 3–4 days. Reheat within 2 hours of removing from fridge; do not leave at room temp longer than 2 cumulative hours.

Freezer: Cool completely, press plastic wrap directly on the surface to prevent ice crystals, then seal in freezer bags. Label with date and spice level (great for gift-giving). Best within 3 months; quality drops noticeably after that as spices dull.

Thawing: Overnight in fridge is safest. For a quick thaw, submerge the sealed bag in cold water, changing the water every 30 minutes; cook and consume immediately.

Reheating from Frozen: Microwave 3 minutes at 70% power, stir, then 1-minute bursts until center hits 165°F. Or dump into a non-stick skillet with 2 Tbsp water, cover, and steam 5 minutes over medium, stirring once.