In a medium bowl, whisk together all the ingredients: peanut butter, coconut aminos, sesame oil, sugar or honey, chili paste (optional), rice vinegar, minced garlic, minced ginger, water or broth until smooth
Taste and adjust seasonings as desired.
Heat 1 tbsp of oil in a large skillet or wok over medium-high heat.
Add the vegetables and stir-fry for 4 - 6 minutes, until crisp-tender.
Pour in the peanut sauce and toss until the vegetables are evenly coated. Serve right away over rice or noodles.
Any leftover sauce keeps in an airtight container in the fridge for up to 5 days.