01 - Set oven to 400°F to prepare for roasting.
02 - Combine cherry tomatoes and minced garlic in a large oven-safe dish; drizzle with olive oil and season with oregano, red pepper flakes if using, salt, and pepper. Toss to coat evenly.
03 - Nestle the feta block in the center of the tomato mixture and drizzle an additional amount of olive oil over it.
04 - Bake for 30 minutes until tomatoes burst and feta has a golden crust.
05 - Simultaneously, boil pasta in salted water until al dente; reserve ½ cup cooking water before draining.
06 - Remove dish from oven and mash feta and tomatoes together until creamy and uniformly combined.
07 - Add drained pasta and chopped basil to the baking dish, tossing to combine. Incorporate reserved pasta water as needed for creaminess.
08 - Adjust seasoning to taste. Serve immediately garnished with extra basil leaves.