Toast the cashews in a dry pan over medium heat until fragrant, then set aside to cool and chop.
In a small bowl, whisk together the chili lime drizzle ingredients: sweet chili sauce, lime juice, fish sauce, and pressed garlic.
In a separate bowl, mix together the stir-fry sauce ingredients: sweet chili sauce, fish sauce, rice vinegar, oyster sauce, and dark soy sauce.
Heat oil in a large skillet over high heat. Sauté the chopped onion and garlic for 1 minute, then add the ground beef and cook until browned.
Pour in the stir-fry sauce and cook for 3 to 4 minutes, allowing the sauce to reduce and caramelize the beef into a deep brown color.
Assemble the bowls with cooked jasmine rice and fresh cucumber and red onion tossed with sesame oil, sesame seeds, and chili flakes.
Top the rice with the caramelized beef, drizzle with the chili lime sauce, and sprinkle with chopped cilantro and toasted cashews before mixing and serving.