01 - Set the oven temperature to 400°F.
02 - In a large ovenproof baking dish, combine cherry tomatoes and minced garlic. Drizzle with olive oil, then season with dried oregano, crushed red pepper flakes if using, salt, and pepper. Toss gently to coat evenly.
03 - Place the block of feta in the center of the baking dish amidst the tomatoes. Drizzle additional olive oil over the feta.
04 - Bake uncovered for 30 minutes until the tomatoes burst and the top of the feta is lightly golden.
05 - While baking, boil salted water in a large pot and cook pasta until al dente according to package directions. Reserve ½ cup pasta cooking water, then drain.
06 - Remove the baking dish from the oven. Use a fork to mash the feta and tomatoes together until creamy and well blended.
07 - Add cooked pasta and chopped basil to the baking dish. Toss all ingredients together, adding reserved pasta water gradually to achieve desired sauce consistency.
08 - Adjust seasoning to taste. Serve immediately garnished with extra basil leaves.