In a large zip-top bag combine the sweet chili sauce, soy sauce, olive oil, lemon juice, kosher salt, and black pepper.
Add the chicken breasts (sliced in half if using a large breast) to the bag and seal; massage the bag to coat the chicken evenly with the marinade.
Refrigerate the sealed bag and marinate for at least 1 hour, or up to overnight for more flavor.
Preheat the grill to medium-high heat.
If using, toss bell pepper strips with a little olive oil and salt and pepper, then place them on the grill alongside the chicken.
Grill the chicken and peppers for about 10 minutes total, flipping intermittently, until the chicken is cooked through and registers 165°F (74°C) or has no pink in the center.
Remove from the grill, garnish the chicken with sliced green onions, and serve with Sutter Home White Zinfandel if desired.