Tomatoes and briny feta cheese form the base of the sauce that coats the pasta in this easy one-pan meal. Enjoy on its own as a vegetarian dinner or top with grilled chicken for some extra protein.
Preheat oven to 400°F.
Toss tomatoes, oil, thyme (or oregano), crushed red pepper and salt together in a 9-by-13-inch baking dish. Place feta in the center. Bake until the tomatoes are broken down and bubbling, about 30 minutes.
Add pasta to the baking dish. Whisk boiling water, tomato paste and garlic together in a measuring cup and pour it over the pasta. Stir to combine. Carefully cover with foil and bake until the pasta is tender, about 18 minutes. Remove from the oven and stir. Cover and let stand for 5 minutes before serving.