Grilled Half-Pound Beef Sliders with Caramelized Onions

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Juicy half-pound beef sliders grilled to perfection and topped with sweet caramelized onions, ideal for a hearty sandwich experience. This american-inspired sandwiches & wraps ready in about 30 minutes pairs ground beef, salt, black pepper for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 550 calories and feeds 4, 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.

Prep: 15 min Cook: 15 min Serves 4 American cuisine 550 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat a grill or grill pan to medium-high heat (about 400°F).
  2. Step 2: In a skillet over medium heat, melt 2 tbsp unsalted butter. Add 1 large thinly sliced yellow onion and cook, stirring occasionally, for 15-18 minutes until onions are deeply caramelized and golden brown. Remove from heat.
  3. Step 3: Divide 1 lb ground beef into 4 equal portions (about 1/4 lb or half-pound each) and gently form each into a patty slightly larger than the slider buns. Season both sides with 1 tsp salt and 1/2 tsp black pepper.
  4. Step 4: Brush 1 tbsp olive oil on the grill grates. Place patties on the grill and cook for 4-5 minutes per side for medium doneness, adding 1 slice cheddar cheese on top during the last minute to melt.
  5. Step 5: Lightly toast 4 slider buns on the grill for 1 minute.
  6. Step 6: Assemble each slider with a lettuce leaf, tomato slice, the grilled beef patty with melted cheese, and a generous spoonful of caramelized onions. Serve immediately.

Equipment for this recipe

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Frequently asked questions

How long does Grilled Half-Pound Beef Sliders with Caramelized Onions take to make?

Total time is about 30 minutes (15 min prep + 15 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 Grilled Half-Pound Beef Sliders 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 ground beef from drying out.

Can I substitute ingredients in Grilled Half-Pound Beef Sliders 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 Grilled Half-Pound Beef Sliders with Caramelized Onions for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). 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 Grilled Half-Pound Beef Sliders 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.

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