These Sheet Pan Onion Sliders are everything you love about a classic cheeseburger—but made super easy in the oven. A layer of thinly sliced onions, seasoned ground beef, melty cheese, and soft slider buns all bake together on one pan.

You get juicy, flavorful beef, sweet roasted onions, gooey cheese, and buttery toasted buns in every bite. They’re ideal for parties, game day, weeknight dinners, or anytime you want to feed a crowd without flipping individual burgers.

Why You’ll Love These Sheet Pan Onion Sliders

  • One-pan baked sliders – Everything cooks together on a sheet pan.
  • Big-batch friendly – Makes a dozen or more sliders in one go.
  • Juicy and cheesy – Seasoned beef, melty cheese, and soft, buttery buns.
  • Customizable toppings – Add pickles, sauce, or your favorite burger fixings.
  • Great for parties – Slice, serve, and watch them disappear.

Ingredients

For the Slider Filling

  • 900 g (2 lb) ground beef (80–85% lean works best)
  • 2 medium yellow onions, very thinly sliced
  • 2–3 cloves garlic, minced
  • 1 tsp salt (or to taste)
  • 1 tsp black pepper
  • 1 tsp onion powder
  • 1 tsp garlic powder
  • 1 tsp smoked paprika or sweet paprika
  • 1–2 tbsp Worcestershire sauce

For Assembly

  • 12–15 slider buns or Hawaiian rolls, sliced horizontally (tops and bottoms kept connected if possible)
  • 8–10 slices cheddar or American cheese (or your favorite melting cheese)
  • 8–10 dill pickle slices (optional, plus more for serving)
  • Ketchup, mustard, or burger sauce for serving

For the Buttery Topping

  • 4 tbsp unsalted butter, melted
  • 1 tsp Dijon mustard
  • 1 tsp Worcestershire sauce
  • 1 tsp sesame seeds or poppy seeds (optional)
  • 1/2 tsp dried onion flakes or garlic powder (optional)

How to Make Sheet Pan Onion Sliders

1) Prep the pan and onions

Preheat your oven to 190°C (375°F).

Line a rimmed sheet pan (about 9×13-inch or similar) with parchment or lightly grease it.

Spread the thinly sliced onions evenly over the bottom of the pan. This will be the flavorful base under the beef.

Tip: Slice onions as thinly as possible so they soften and caramelize quickly.

2) Season and press the beef

In a large bowl, combine ground beef, garlic, salt, pepper, onion powder, garlic powder, smoked paprika, and Worcestershire sauce. Mix gently until just combined—don’t overwork the meat.

Gently press the beef mixture over the onions in an even layer, reaching to the edges of the pan. Try to keep it about the same thickness throughout so it cooks evenly.

Tip: Lightly oil your hands or use parchment on top to help press the beef without sticking.

3) Bake the beef and onions

Bake in the preheated oven for 15–18 minutes, or until the beef is cooked through and the onions underneath are soft and starting to caramelize.

Remove the pan and carefully tilt it to spoon off excess grease if there’s a lot (be cautious—hot fat!).

4) Add cheese and buns

Lay the slices of cheese evenly over the hot beef layer.

Place the bottom half of the slider buns or rolls over the cheese (cut side down toward the cheese). If your rolls are connected as a sheet, keep them that way.

Bake another 3–5 minutes until the cheese is melted and the bun bottoms are warmed.

5) Top with buns and buttery glaze

Meanwhile, in a small bowl, mix melted butter, Dijon mustard, Worcestershire, and (if using) sesame seeds and dried onion/garlic.

Remove the pan from the oven and place the top halves of the buns over the bottoms to complete the sliders. Brush the tops generously with the buttery mixture.

Return to the oven for 5–7 minutes, until the tops are golden and slightly crisp around the edges.

Tip: Watch the last few minutes closely so the tops don’t over-brown.

6) Slice and serve

Remove from the oven and let the sliders rest for a few minutes.

Run a knife between the rolls to cut into individual sliders, scooping underneath so you get onions, beef, and cheese with each one.

Serve warm with pickles, ketchup, mustard, or burger sauce on the side—or tuck the pickles inside the sliders before serving.

Serving Suggestions

  • Serve on a platter with pickle slices, ketchup, mustard, and mayo or burger sauce.
  • Pair with crispy fries, potato wedges, or a simple salad.
  • Great for game day, potlucks, or movie nights.
  • Add sliced lettuce and tomato after baking for a more “classic burger” vibe.

Cook’s Tips

  • Use the right beef: 80–85% lean beef gives juicy sliders without being too greasy.
  • Thin onions: The thinner the onion slices, the softer and sweeter they’ll get under the beef.
  • Don’t overmix: Gently mixing the beef keeps it tender; overworking can make it dense.
  • Drain if needed: Carefully spoon off excess grease after baking the beef to prevent soggy buns.
  • Keep rolls together: Using connected rolls makes slicing and serving easier.

Variations & Add-Ins

  • Cheeseburger sliders: Add a layer of pickles and thinly sliced cheese between beef and buns before the final bake.
  • BBQ onion sliders: Swap some Worcestershire for BBQ sauce in the beef mixture, and drizzle a bit on top before cheese.
  • Spicy sliders: Add sliced jalapeños, pepper jack cheese, or a spicy aioli drizzle.
  • Caramelized onion upgrade: Cook onions slowly in a skillet with butter before layering under the beef for extra sweetness.
  • Turkey or chicken: Use ground turkey or chicken with the same method (adjust seasoning and ensure fully cooked).

Storage & FAQ

  • Storage: Cool leftovers and store in an airtight container in the fridge for up to 3 days.
  • Reheating: Reheat covered with foil in a 175°C (350°F) oven for about 10–15 minutes, or until warmed through. You can also reheat individual sliders in the microwave, though buns will be softer.
  • Freezing: Freeze cooled sliders individually wrapped, then placed in a freezer bag for up to 1 month. Reheat from frozen, covered, in the oven until hot.
  • Can I make ahead? Yes—bake the beef and onions ahead, then add cheese and buns and do the final bake just before serving.
  • Can I reduce the fat? Use slightly leaner beef (90%) and drain well after baking—but don’t go too lean or they may be dry.

Sheet Pan Onion Sliders give you all the flavor of classic cheeseburgers with sweet roasted onions, melty cheese, and buttery rolls—baked in one pan and perfect for sharing. They slice easily, serve beautifully, and vanish fast at any gathering.

Sheet Pan Onion Sliders – Juicy, Cheesy & Perfect for a Crowd

Sheet Pan Onion Sliders – Juicy, Cheesy & Perfect for a Crowd
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Servings: 12 sliders
Prep:
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Easy baked Sheet Pan Onion Sliders made with a layer of thinly sliced onions, seasoned ground beef, melty cheese, and buttery slider buns. Perfect for game day, parties, or a crowd-pleasing family dinner.

Sheet Pan Onion Sliders – Juicy, Cheesy & Perfect for a Crowd
🖨 Print Recipe📌 Pin it

Ingredients

  • For the Slider Filling:
  • 900 g (2 lb) ground beef (80–85% lean)
  • 2 medium yellow onions, very thinly sliced
  • 2–3 cloves garlic, minced
  • 1 tsp salt
  • 1 tsp black pepper
  • 1 tsp onion powder
  • 1 tsp garlic powder
  • 1 tsp smoked paprika or sweet paprika
  • 1–2 tbsp Worcestershire sauce
  • For Assembly:
  • 12–15 slider buns or Hawaiian rolls, sliced horizontally (tops and bottoms)
  • 8–10 slices cheddar or American cheese
  • Dill pickle slices (optional)
  • Ketchup, mustard, or burger sauce (for serving)
  • For the Buttery Topping:
  • 4 tbsp unsalted butter, melted
  • 1 tsp Dijon mustard
  • 1 tsp Worcestershire sauce
  • 1 tsp sesame seeds or poppy seeds (optional)
  • 1/2 tsp dried onion flakes or garlic powder (optional)

Instructions

  1. 1. Prep the pan and oven
  2. 2. Preheat oven to 190°C (375°F).
  3. 3. Line a rimmed sheet pan with parchment or lightly grease it.
  4. 4. Spread thinly sliced onions evenly over the bottom of the pan.
  5. 5. Season and press the beef
  6. 6. In a large bowl, combine ground beef, garlic, salt, pepper, onion powder, garlic powder, smoked paprika, and Worcestershire sauce.
  7. 7. Gently mix until just combined.
  8. 8. Press the beef mixture evenly over the onions in the pan, reaching the edges.
  9. 9. Bake the beef and onions
  10. 10. Bake for 15–18 minutes, or until the beef is cooked through and the onions are soft.
  11. 11. Carefully tilt the pan and spoon off excess grease if needed.
  12. 12. Add cheese and bottom buns
  13. 13. Lay cheese slices evenly over the hot beef layer.
  14. 14. Place the bottom halves of the slider buns, cut side down, on top of the cheese.
  15. 15. Bake for 3–5 minutes, until cheese is melted and buns are warmed.
  16. 16. Make the buttery topping
  17. 17. In a small bowl, mix melted butter, Dijon mustard, Worcestershire, and (if using) sesame seeds and dried onion/garlic.
  18. 18. Add top buns and glaze
  19. 19. Place the top halves of the buns over the bottoms to complete the sliders.
  20. 20. Brush the tops generously with the buttery mixture.
  21. 21. Return to the oven for 5–7 minutes, until tops are golden and slightly crisp.
  22. 22. Slice and serve
  23. 23. Let rest for a few minutes, then cut into individual sliders.
  24. 24. Serve warm with pickles and sauces on the side or tucked inside the sliders.

Notes

Slice onions very thin so they soften and sweeten under the beef.
Don’t overwork the ground beef; gentle mixing keeps it tender.
Drain excess fat after baking the beef layer to avoid soggy buns.
Keep rolls connected as a sheet to make building and slicing easier.
Add pickles, shredded lettuce, or thin tomato slices after baking if you like.

Nutrition

Calories: ~220–250
Protein: ~12–15 g
Total Fat: ~13–15 g
Carbohydrates: ~15–18 g
Fiber: ~1 g