01 - Preheat the oven to 400°F (200°C). Line a baking sheet with parchment paper.
02 - Cut sweet potatoes lengthwise into 1/2-inch thick slabs. Brush both sides with olive oil and sprinkle with sea salt.
03 - Arrange sweet potato slices on the prepared baking sheet. Roast at 400°F for 20–25 minutes, flipping halfway through, until fork-tender and lightly golden.
04 - In a mixing bowl, whisk together creamy peanut butter, soy sauce or tamari, lime juice, maple syrup or honey, toasted sesame oil, grated ginger, and minced garlic. Gradually add warm water until smooth and pourable.
05 - Shred red cabbage, grate carrot, thinly slice cucumber, chop roasted peanuts and fresh cilantro, and slice green onions. Set aside all prepared toppings.
06 - Allow roasted sweet potato slices to cool slightly. Spread each slab with a generous spoonful of peanut sauce.
07 - Top sweet potato toasts with cabbage, carrot, cucumber, peanuts, cilantro, green onions, and sesame seeds. Finish with chili flakes as desired.
08 - Serve immediately as a snack, appetizer, or light meal.