Prepare the sweet potato noodles: Spiralize the sweet potatoes using a spiralizer or julienne peeler. If using pre-made sweet potato noodles, rinse them under cold water and set aside.
Make the peanut sauce: In a bowl, mix together the peanut butter, soy sauce, honey, lime juice, sesame oil, chopped garlic, and grated ginger until smooth. Adjust the consistency with a splash of water if needed.
Sauté the vegetables: Heat a little sesame oil in a large pan or wok over medium heat. Add the sliced bell peppers and sugar snap peas and sauté for about 3-4 minutes until softened.
Add the sweet potato noodles: Add the sweet potato noodles and grated carrots to the pan. Mix well and sauté for an additional 5-7 minutes until the noodles are tender but not mushy.
Combine with the sauce: Remove the pan from heat and pour the peanut sauce evenly over the noodles and vegetables. Mix well until everything is thoroughly coated.
Garnish and serve: Transfer the noodles to a serving platter and garnish with chopped green onions, cilantro, and chopped peanuts if desired. Serve with lime wedges on the side for an extra zesty kick.