Prep the zoodles: Spiralize the zucchini and place the zoodles in a colander. Sprinkle with a pinch of salt and let them sit while you cook. This helps draw out excess moisture so your bowls don’t get watery.
Season the chicken: Pat the chicken dry.
Toss with 1 tablespoon oil, 1/2 teaspoon salt, and 1/2 teaspoon pepper. If you like heat, add a pinch of red pepper flakes.
Brown the chicken: Heat 1 tablespoon oil in a large skillet over medium-high heat. Add the chicken in a single layer and cook, stirring occasionally, until browned and cooked through, about 5–7 minutes.
Transfer to a plate and cover to keep warm.
Cook the broccoli: Add the remaining 1 tablespoon oil to the skillet. Toss in the broccoli and a pinch of salt. Cook 2–3 minutes, stirring, until the edges pick up a little color.
Add aromatics: Reduce heat to medium.
Add the garlic and ginger. Cook 30–60 seconds, stirring constantly, until fragrant. Don’t let the garlic burn.
Make the quick sauce: Stir in the chicken broth, soy sauce or tamari, honey, and lemon juice.
Bring to a simmer. Let it bubble for 2 minutes to reduce slightly and coat the broccoli.
Return the chicken: Add the cooked chicken and any juices back to the pan. Toss to coat in the garlicky sauce.
Taste and adjust seasoning with more salt, pepper, or lemon juice.
Dry the zoodles briefly: Press the zucchini in the colander gently to release extra liquid. Add them to the pan. Toss everything together over medium heat for 1–2 minutes, just until the zoodles are warmed and slightly tender but still have bite.
Finish and serve: Turn off the heat.
Drizzle with sesame oil if using. Top with green onions and sesame seeds. Serve immediately while the zoodles are al dente.