Preheat the oven to 200C, fan-forced. Line an oven tray with baking paper. (Speed things up: If you have an air fryer, use it to cook the wedges instead of using the oven.) Cut the unpeeled potatoes into 2cm-thick wedges. Put the potato on the lined tray, drizzle with 3 tsp olive oil, season with salt and pepper and toss to coat. Roast for 18 mins.
Step 2 — Prep ingredients
While the wedges are roasting, halve the tomatoes. Thinly slice the onion. Strip the thyme leaves, discarding the tough stems. Trim the beans and halve.
Step 3 — Roast tomatoes
Once the wedges have roasted for 18 mins, add the tomatoes to the tray, drizzle with 2 tsp olive oil and season with salt and pepper. Roast for a further 8-10 mins until the wedges are tender and golden and the tomatoes are softened.
Step 4 — Make onion-thyme sauce
Meanwhile, heat 2 tsp olive oil in a medium frypan over medium-high heat. Cook the onion, stirring regularly, for 3-4 mins until softened. Add 1 tsp flour and cook, stirring, for 1 min or until golden. Add ½ tsp thyme*, then gradually add 250ml (1 cup) boiling water, stirring constantly to prevent lumps forming. Crumble in 1 stock cube*, stir, then bring to a simmer.
Step 5 — Cook salmon
SALMON OPTION Heat 2 tsp olive oil in a small frypan over high heat. Cook the salmon, skin-side down, for 3 mins or until skin is crisp and golden. Reduce the heat to medium-high, turn and cook, flesh-side down, for a further 2-3 mins until just cooked or cooked to your liking.
Step 6 — Cook beans and serve
While the salmon is cooking, add the beans to the onion-thyme sauce and cook, covered, for 3-4 mins until the beans are tender and the sauce is thickened. Divide the salmon, wedges, tomatoes and sauce among plates to serve.