Bring a medium saucepan of water to the boil for the noodles. Shred the zucchini using a julienne peeler (see Kitchen 101). Coarsely chop the peanuts. Combine the peanuts, 1½ tsp curry powder and 2 tsp plain flour in a shallow bowl. Season with salt and pepper. Press the steaks into the peanut mixture to roughly coat (don't worry if they're not completely covered).
Step 2 — Cook noodles
Cook the noodles in the pan of boiling water for 7 mins or until tender. Drain, then rinse under hot water to prevent the noodles from sticking. Return to the pan and cover to keep warm.
Step 3 — Cook steaks
While the noodles are cooking, heat 1 tbs vegetable oil in a medium frypan over medium-high heat until hot. Cook the steaks, turning regularly, for 4-6 mins for medium-rare, or until cooked to your liking. Remove from the pan and rest for 3 mins.
Step 4 — Make curry sauce
Meanwhile, heat a small saucepan over medium heat. Add the remaining curry powder and toast, stirring, for 30 secs or until fragrant. Add the peanut butter, 1 tbs soy sauce, 2 tsp white vinegar and 2 tsp sugar and cook, stirring, for 1 min or until combined. Add 125ml (½ cup water) and cook, stirring, for 5-6 mins until smooth and thickened. Remove from the heat.
Step 5 — Serve up
Add an extra 1-2 tbs water to the curry sauce if you prefer it runnier, then taste and season with pepper. Thickly slice the steaks. Divide the noodles, zucchini and steak among bowls. Spoon over the curry sauce and enjoy!
Step 6 — Kitchen 101
Don't have a julienne peeler? Use a spiraliser if you have one. Otherwise, peel the zucchini into thin ribbons instead. It may not look like the photo, but it will be just as delicious and nutritious. Just don't be tempted to use a box grater or your zucchini could end up mushy!