This works great as a stand-alone recipe, but also as a component in Jamie’s Sunny Gathering from Together – see the full collection of menus here.
GET AHEAD Halve the tomatoes, placing them in a large roasting tray as you go. Halve the bulb of garlic across the middle and add to the tray. Pick in the oregano leaves, if you’ve got some, then add 1 tablespoon each of olive oil and red wine vinegar and a pinch of sea salt and black pepper. Toss together and arrange in a single layer. Cover and refrigerate overnight.
TO SERVE Preheat the oven to 180°C/350°F/gas 4. Roast the tomatoes for 1 hour, before you cook the salmon. Great hot or warm.