Ingredients

• 1/4 lb onion, as thinly sliced as possible
• 3 tablespoons olive oil
• 1 tablespoon butter
• Tuna steaks

Instructions

1. Heat the olive oil and butter in a skillet over medium heat.

2. Add the thinly sliced onion and cook until softened.

3. Add the tuna steaks to the skillet with the onion sauce.

4. Cook the tuna steaks, turning once, until done to your liking.

5. Serve the tuna steaks topped with the onion sauce.