Start the rice: Cook rice according to package directions. For brown rice, use 2:1 water ratio; for white rice, use 1.5:1 ratio. Set aside.
Make marinade: In a medium bowl, whisk together honey, soy sauce, minced garlic, ginger, lemon juice, red pepper flakes, and 2 tablespoons of oil until well combined and honey is dissolved.
Marinate shrimp: Add shrimp to the marinade, toss to coat completely, and let sit for 10-15 minutes at room temperature. Do not marinate longer than 2 hours.
Heat the pan: Heat remaining 1 tablespoon oil in a large skillet over medium-high heat until shimmering.
Cook shrimp: Remove shrimp from marinade using tongs, allowing excess to drip off. Discard used marinade immediately. Add shrimp to hot skillet in a single layer, avoiding overcrowding. Cook for 2-3 minutes until bottom is golden and caramelized.
Flip and finish: Flip shrimp and cook another 1-2 minutes until second side is golden and shrimp are pink and cooked through (internal temperature 145°F).
Optional sauce reduction: If desired, prepare fresh sauce by combining 2 tablespoons honey, 2 tablespoons soy sauce, 1 minced garlic clove, and 1 tablespoon water in small saucepan. Simmer 2-3 minutes until thickened. For extra gloss, add cornstarch slurry and cook 30 seconds more.
Prepare vegetables: Quickly sauté mixed vegetables in the same pan for 1-2 minutes until crisp-tender, or serve raw for extra crunch.
Assemble bowls: Divide cooked rice among 4 serving bowls. Top with honey garlic shrimp and vegetables. Drizzle with any remaining sauce.
Garnish and serve: Sprinkle with sliced green onions, fresh cilantro, and sesame seeds. Serve immediately with lime wedges on the side.