01 - Set the oven temperature to 400°F.
02 - Place cherry tomatoes in a baking dish, add minced garlic, drizzle with 2 tablespoons of olive oil, season with salt, black pepper, and oregano, then toss to combine.
03 - Create a space in the center of the baking dish and place the feta block there; drizzle the remaining 1 tablespoon of olive oil over the feta.
04 - Sprinkle crushed red pepper flakes over the feta if desired.
05 - Bake for 30 to 35 minutes until tomatoes burst and feta is golden and softened.
06 - While baking, cook pasta in salted boiling water following package instructions until al dente; reserve 1/2 cup pasta cooking water then drain.
07 - Remove baking dish from oven and mash feta and tomatoes with a fork until creamy and well combined.
08 - Add cooked pasta and fresh basil into the baking dish; toss ingredients together, adding reserved pasta water gradually to achieve a silky sauce consistency.
09 - Adjust seasoning as needed and serve immediately garnished with additional basil leaves.