Casa Roma, Bukit Timah
There's no shortage of good Italian restaurants in Singapore, and Casa Roma is another good example of that (833 Bukit Timah Raod #01-09, 6464-8509). The prosciutto e funghi pizza had to have been one of the best that I've ever had. The cheese was very rich, only to be complemented with surprisingly fragrant mushrooms. Rock on! This place's pizza was seriously better than some of the places I ate at in Italy. The only shortcoming for me was that the center of the pizza was a little soggy, but it didn't matter as the taste of the cheese and mushrooms carried the pie all the way through.
The other dishes here are worth mentioning too. The clam appetizer's broth had a touch of tomato in it (unlike the industry standard butter and wine version), and it was light enough to drink as a soup (I really didn't need to order the minestrone after all, especially since the beans were rather undercooked). The penne alla matriciana was also pretty good and what you would expect. Cantina still wins in the pasta department in my mind, but Casa Roma wins when it comes to pizza. Pasta Fresca (which interestingly has a shop nearly next door to Casa Roma) is a nice standby either way.