Prepare the halloumi: Slice the halloumi into 1/2-inch thick slices. Avoid making them too thin as halloumi can become too soft when cooked.
- Heat the oil: In a frying pan or skillet, heat olive oil over medium heat. Once hot, add halloumi slices and cook for 2-3 minutes on each side until golden brown and crispy. You can also grill the halloumi if preferred, brushing it with olive oil before grilling for 2-3 minutes on each side.
- Toast the buns: Slice the buns and toast them until golden brown, either in a toaster or on a pan, for added crunch.
- Assemble the burgers: Spread a generous amount of tzatziki (or hummus) on the bottom half of each toasted bun. Add lettuce leaves, a slice of tomato, and red onion.
- Add the halloumi: Place the crispy halloumi slices on top of the veggies. Optionally, add toppings like avocado, pickles, or hot sauce for extra flavor.
- Serve: Top with the other half of the bun and serve immediately for a fresh, satisfying meal.