Start by heating a dry skillet over medium heat to warm the frozen laccha parathas.
Add a small amount of butter to each side of the parathas, cooking until they turn golden and flaky.
Stack the cooked parathas and keep them wrapped in foil to stay soft.
Next, melt butter and oil in another pan over low heat.
Add the sliced onions and cook gently for about 10 to 12 minutes, stirring occasionally, until they turn golden brown and soft.
Sprinkle salt to help the onions soften faster, then set them aside.
Divide the minced meat into four equal portions and loosely shape each into a ball without pressing too firm.
Season the meat balls with salt, pepper, garlic, and smoked paprika.
Heat a heavy skillet or cast-iron pan on high heat and add a little oil.
Place each meatball on the hot skillet and press down firmly with a spatula to flatten into a patty.
Cook the patties for 2 to 3 minutes until the edges become crispy and brown.
Flip the patties and immediately place a slice of cheese on top, letting it melt over the patty.
To assemble, spread a generous layer of the prepared burger sauce on one paratha.
Add the cheesy smash burger patty on top of the sauce.
Layer with caramelized onions, and if desired, include lettuce and tomato slices.
Drizzle some more sauce over the toppings and cover with a second paratha to create your paratha bun.
Place the assembled burger back onto a warm skillet briefly to soften the cheese further.
Cut the burger in half and serve immediately for the best crispy and cheesy experience.