Spicy Oven Roasted Tomatoes with Yogurt

Preheat oven to 300°F. Toss tomatoes with mustard seeds, 2 cloves sliced garlic, thyme, red pepper flakes, and 1/4 cup oil. Arrange on a rimmed baking sheet and season with salt. Bake, stirring once, until tomatoes are shriveled, 45 to 50 minutes. Discard thyme and any burnt garlic slices.

Meanwhile, arrange bread on a rimmed baking sheet and brush with remaining 1/4 cup oil. Bake, flipping once, until golden brown and toasted, 15 to 20 minutes. Rub with remaining whole garlic clove and season with salt.

In a small bowl, whisk yogurt and lemon juice; spoon into a shallow dish. Top with warm tomatoes and drizzle with some of the accumulated oil. Serve with bread and sprinkle with more flaky salt and red pepper flakes.