1-First Step: Prepare all ingredients by chopping vegetables, mincing garlic, grating ginger, and slicing chicken into bite-sized pieces. This mise en place ensures smooth cooking.

2-Second Step: In the slow cooker, combine chicken, coconut milk, red curry paste, fish sauce, brown sugar, garlic, and ginger. Stir well to evenly distribute flavors across the dish.

3-Third Step: Cover and cook on low for 4 hours or on high for 2 hours, allowing the chicken to become tender and infuse with the sauce. For vegan variation, add tofu in the last hour.

4-Fourth Step: About 30 minutes before serving, add sliced red bell pepper and snap peas to preserve crunch and nutrition.

5-Fifth Step: Cook rice noodles separately according to package instructions, then drain and rinse under cold water.

6-Sixth Step: Once slow cooking is complete, stir in cooked noodles and fresh cilantro. Mix gently to coat noodles with the sauce uniformly.

7-Final Step: Serve hot, garnished with extra cilantro or lime wedges if desired. Adapt seasoning with additional fish sauce or lime juice for varied tastes. For gluten-free and low-calorie adaptations, follow ingredient substitutions while maintaining the same steps.