Prepare the dressing by mixing garlic, jalapeno, lime juice, fish sauce, lemongrass, brown sugar, and red chile flakes in a bowl.

Toast jasmine rice in a skillet over medium-high heat for about 10 minutes until golden brown. Allow to cool and grind to a coarse powder.

Heat vegetable oil in a skillet and sear the New York strip steak for 5-6 minutes on one side. Flip and cook for another 5-6 minutes for medium-rare. Let rest and slice against the grain.

In a bowl, mix the sliced beef, shallots, mint, and cilantro, then pour the dressing over and toss to combine.

Serve the mixture atop lettuce and add halved cherry tomatoes and cucumbers.