Tender sirloin steak and juicy shrimp cook to perfection in these easy foil packs. Seasoned with Old Bay and aromatic herbs, they combine with sweet tomatoes and sharp onions for a no-fuss, flavorful weeknight dinner with minimal cleanup. Ready in under 35 minutes.
½ pound sirloin steak, cut into 1-inch cubes
½ pound raw shrimp, cleaned and deveined
1 cup colorful grape tomatoes, halved
½ small red onion, cut into thin wedges
3 cloves garlic, minced
1 tablespoon Old Bay seasoning
1 teaspoon dried thyme
1 teaspoon ground cumin
Salt and freshly ground black pepper, to taste
1 tablespoon olive oil
Chopped fresh parsley, for garnish
Thinly sliced green onions, for garnish
Lime wedges, for serving
Preheat oven to 375°F (190°C) or prepare grill for medium-high heat.
Cut four 12×18-inch sheets of heavy-duty aluminum foil.
On each foil sheet, arrange steak and shrimp, season with Old Bay, thyme, cumin, garlic, salt, and pepper.
Add tomatoes, red onion wedges, and drizzle with olive oil.
Fold foil packs tightly, sealing edges but leaving a small vent for steam.
Place on oven rack or grill, cook 15-20 minutes until shrimp turns pink and steak reaches desired doneness.
Garnish with parsley, green onions, and serve with lime wedges.
Use fresh thyme for extra aroma if available
Substitute sirloin with tenderloin or flank steak
Shrimp can be replaced with cooked diced chicken for non-seafood option
Add cherry peppers or bell peppers for extra color
Marinating for 30 minutes enhances flavor
Foil packs can be frozen raw for individual lunches