Begin by patting the boneless, skinless chicken thighs dry with paper towels. Season both sides lightly with salt and pepper.
In a large skillet or wok, heat the toasted sesame oil over medium-high heat until it shimmers.
Add the chicken thighs to the skillet in a single layer. Cook for about 5-7 minutes on each side, or until the chicken is golden brown and cooked through. Remove the chicken from the skillet and set aside.
In the same skillet, add the sliced carrots, red bell pepper, and sugar snap peas. Stir-fry for about 3-4 minutes, or until the vegetables are tender-crisp.
In a small bowl, whisk together the soy sauce, chili garlic sauce, rice vinegar, honey, grated ginger, and minced garlic. Pour this sauce over the vegetables in the skillet.
Return the cooked chicken thighs to the skillet, and toss everything together to coat the chicken and vegetables in the sauce. Cook for an additional 2-3 minutes to heat everything through.
Sprinkle the toasted sesame seeds over the top just before serving. Enjoy your vibrant and flavorful One Pan Sesame Chicken.