Prepare the ingredients for the roasted tomatoes, weigh the couscous and baby spinach, and place the spinach into a large bowl.
Preheat your oven to 180C (fan). Note: If you’re roasting the tomatoes in the same oven as you are cooking a Simply Bake meal, your oven will already be on at 170 °C (fan) which is fine; your tomatoes may take a few minutes longer.
Lay the tomatoes out on a lined baking tray, cut side up.
Combine the balsamic vinegar and olive oil (for the tomatoes not the dressing), and drizzle over the tomatoes.
Sprinkle the tomatoes with a little sea salt and cook for 25-30 minutes until the tomato halves have wrinkled, partially collapsed and taken on a darker colour.
Once the tomatoes and in the oven make the salad dressing. Combine all the dressing ingredients in a small jam jar with a tight-fitting lid and shake hard or whisk together in a bowl. Taste and adjust the balance of vinegar and sugar as you prefer.
Once the tomatoes have been in for about 15 minutes, put the couscous on to cook according to the packet instructions - usually you will need to bring it to the boil and then simmer for 6-7 minutes. When it's ready, drain thoroughly before adding to the bowl with the baby spinach. Stir together gently so that the heat of the couscous wilts the spinach.
When the tomatoes are ready - slumped and wrinkly with some colour from the caramelised balsamic and natural sugars - remove them from the oven and stir gently through the couscous and spinach.
Drizzle the couscous salad with dressing just before serving. Use only as much dressing as you like, the rest can be stored in the fridge for a few days to use on another salad.
Notes
Tip: Make double the volume of dressing and save half to dress another salad later in the week. It will keep for 2-3 days in a sealed jar or box in the fridge.