01 - Set the oven to 400°F (200°C) to preheat.
02 - In a large ovenproof baking dish, combine cherry tomatoes and minced garlic. Drizzle with olive oil, season with dried oregano, red pepper flakes if using, salt and black pepper, then toss to coat evenly.
03 - Nestle the block of feta cheese in the center of the baking dish among the tomatoes and drizzle additional olive oil over the cheese.
04 - Place the baking dish in the oven and bake for 30 minutes until the tomatoes are bursting and the feta is golden brown on top.
05 - While baking, cook the pasta in a large pot of salted boiling water until al dente following package instructions. Reserve half a cup of pasta cooking water before draining.
06 - Remove the baking dish from the oven and use a fork to mash the feta and roasted tomatoes together until creamy and well combined.
07 - Add the drained pasta and chopped basil to the baking dish. Toss thoroughly, adding reserved pasta water gradually to reach desired creaminess.
08 - Taste and adjust salt and pepper as needed. Serve immediately, garnished with extra fresh basil leaves.