In a large dutch oven, heat oil over medium heat and sauté lemongrass, garlic, and ginger for 2 minutes until flagrant.
Add in mushrooms, bok choy, bean sprouts, and snap peas. Sauté for 5 to 7 minutes until veggies begin to soften.
Add in broth, coconut milk, fish sauce, lime juice, curry powder, chilis, basil, cilantro, salt, pepper, and red pepper flakes. Mix well and let simmer for 5 minutes.
Add in shrimp and mix until shrimp becomes opaque.
Add in spiralized summer squash or zucchinis, and rice noodles if adding.
Taste and adjust salt and spices as desired. Garnish and serve hot.