Hi there Karla, and welcome back to the Disney Parks Moms Panel!
If you want pizza, Via Napoli is the place to go. We got the big ol' Mezzo Metro pie - basically the size of our table - and the three of us devoured it. I'm excited for you to give it a try!
The International Gateway entrance takes you directly into World Showcase so it's closest to the Italy pavilion, but you'll still have a bit of a walk to get there. If you're hopping over to Epcot from another Theme Park, you'll take a bus to Disney's Beach Club Resort, the closest Resort hotel to the International Gateway entrance. From the bus stop, you'll walk to the back of the resort, then another 5 minutes or so to the International Gateway. Once inside the Theme Park, take a right over the footbridge toward France, then walk about 5-10 minutes to Italy, halfway around the lagoon.
If you choose to enter Epcot at the main entrance, you can walk through Future World, then hop aboard a boat across the lagoon to the Italy pavilion. I think this route may actually mean a little less walking overall. Just be sure to leave yourself enough time to make your reservation in case you have a bit of a wait to board the boat.
I hope this helps with your planning, Karla. Enjoy that fabulous Italian fare, and do come see us again if you have any more questions.
Keep Disney Dreaming,
Kathy K.