Prep the chicken. Pat dry and slice into thin bite-size strips. Season lightly with salt and pepper.

Make the sauce base. In a bowl, whisk soy sauce, 1/2 cup pineapple juice from the can, brown sugar or honey, rice vinegar, garlic, ginger, and a pinch of red pepper flakes. If you want a slightly thicker glaze, whisk in the cornstarch until smooth.

Cook the chicken. Heat neutral oil in a large skillet or pot over medium-high. Add the chicken and sear until lightly browned and mostly cooked, about 4–5 minutes. Don’t crowd the pan; work in batches if needed.

Add peppers and pineapple. If using bell peppers, toss them in and stir for 1–2 minutes. Add the pineapple chunks and stir another minute so they warm and pick up some color.

Pour in sauce and broth. Add the sauce mix and chicken broth. Stir, bring to a gentle simmer, and cook 5–7 minutes to marry flavors. If you used cornstarch, the liquid will turn glossy and lightly thickened.

Cook the noodles. In a separate pot, boil ramen according to package directions, 2–3 minutes. Drain and rinse briefly under hot water to prevent sticking.

Finish the pot. Stir in sesame oil and taste the broth. Adjust with more soy for salt, pineapple juice for sweetness, or a squeeze of lime for brightness. Add spinach or snap peas now so they just wilt or turn crisp-tender.

Combine. Add noodles to the skillet or divide noodles into bowls and ladle the chicken-pineapple broth over the top. Top with green onions, sesame seeds, and extra heat if you like.

Serve hot. A final squeeze of lime brings it all together. Eat right away while the noodles are bouncy.