Quick Pan-Seared Burger with Crispy Onions

Method

1. Heat olive oil in a skillet over medium-high heat.
2. Add onion slices and cook until golden brown, about 5 minutes.
3. Form beef into a patty and cook for 3-4 minutes per side for medium-rare.
4. Place cheddar on top of the patty and let melt.
5. Toast the bun in the skillet or under the broiler.
6. Assemble the burger with ketchup, mustard, and pickles.
7. Check that the ground meat reaches 71°C (160°F) throughout before serving.