Griddled Ciabatta Steak Sandwich with Caramelized Onions
A hearty steak sandwich featuring butter-toasted ciabatta rolls, tender seared steak, and sweet caramelized onions for a perfect balance of savory and sweet flavors. This american-inspired sandwiches & wraps ready in about 40 minutes pairs split in half ciabatta rolls, softened unsalted butter, sirloin steak for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 650 calories and feeds 2, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 2, split in half ciabatta rolls
- 2 tbsp, softened unsalted butter
- 10 oz sirloin steak
- 1 tbsp olive oil
- 1 medium, thinly sliced yellow onion
- 1 tsp salt
- 1/2 tsp black pepper
- 1/4 tsp garlic powder
- 1 cup, fresh arugula
- 2 tbsp mayonnaise
Instructions
- Step 1: Preheat a griddle or large skillet to medium heat. Spread 2 tbsp softened unsalted butter evenly on the cut sides of 2 ciabatta rolls and place them buttered-side down on the griddle. Toast for about 3 minutes or until golden brown and warm, then remove and keep warm.
- Step 2: In the same griddle, add 1 tbsp olive oil and add 1 medium thinly sliced yellow onion. Cook over medium heat, stirring occasionally, for 15-18 minutes until onions are deeply golden and caramelized. Remove and set aside.
- Step 3: Pat 10 oz sirloin steak dry and season both sides with 1 tsp salt, 1/2 tsp black pepper, and 1/4 tsp garlic powder. Increase heat to medium-high and sear steak for 3-4 minutes per side for medium-rare or longer to desired doneness. Remove and let rest for 5 minutes before slicing thinly against the grain.
- Step 4: Spread 2 tbsp mayonnaise evenly on the bottom halves of the toasted ciabatta rolls. Layer with 1 cup fresh arugula, the sliced steak, and the caramelized onions. Top with the other halves of the rolls and serve immediately.
Frequently asked questions
How long does Griddled Ciabatta Steak Sandwich with Caramelized Onions take to make?
Total time is about 40 minutes (10 min prep + 30 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.
How do I store leftover Griddled Ciabatta Steak Sandwich with Caramelized Onions?
Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep split in half ciabatta rolls from drying out.
Can I substitute ingredients in Griddled Ciabatta Steak Sandwich with Caramelized Onions?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Griddled Ciabatta Steak Sandwich with Caramelized Onions for a different number of people?
The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
What goes well with Griddled Ciabatta Steak Sandwich with Caramelized Onions?
American sandwiches & wraps like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.
What others are saying
- ★★★★★
This recipe is a winner. The griddled ciabatta gets that perfect crunch and the onions are divine.
- ★★★★★
My kids couldn't get enough of these sandwiches! The onions added such a sweet flavor.
- ★★★★☆
The sandwich was a hit at my picnic. The caramelized onions were the star.
Related recipes
Pan-Seared Steak Sandwich with Caramelized Onions and Horseradish Mayo
Grilled Philly Steak Sandwich with Sautéed Onions and Peppers
Pan-Seared SC Model Steak with Spiced Citrus Glaze
Grilled Italian Steak Club Sandwich with Coated French Fries
Rider's Steak and Root Vegetable Medley
Pan-Seared Garlic Butter Steak Bites
Equipment for this recipe
Top-rated tools to make this recipe successfully.
