Good lunch spot: Philly Airport to Valley Forge/Collegeville
You should just wait until you get to Cville. There's the Collegeville Italian Bakery.
Or, try Bon Jung Japanese Restaurant - www.bonjungsushi.com
Also in Cville there's Satchmo's Cajun/Creole Deli at 315 E Main St. (610) 489-7282 (no website).
But, I'd suggest taking a left off of Rt. 422 at the Cville exit and go down Rt. 29S into Phoenixville (approx. 3 miles). There's many little spots in town on Bridge Street and if you keep going straight on Nutt Rd. to Rt. 23, you'll go by a McDonalds - make a right and check out Thai Place in the strip mall. Or, go 3 traffic lights down and make a right into another small strip mall where you'll find Thai L'Elepant.
How far off course are you willing to deviate? If you are planning to take 95 south-476N-76W-422W, then you can go to Legal Seafoods (yes, it is a chain, but a good one) in the King of Prussia mall or take a short detour from 476 into Wayne to visit the restaurants already mentioned (would add Margaret Kuos to the list).
If you want good Thai food, one of the better Thai restaurants called Thai L'Elephant is in Phoenixville, which is about 10 min from Collegeville.
Hope this helps.
There are plenty of great options along 476. You don't have to go near the city and will avoid the hell that is 76 traffic. Trio's Cold Cuts is right near the intersection of 476 and 95, on MacDade and Fairview Rds in Folsom, PA. They have a sit down area with homemade pickles on the tables and a fantastic selection of sandwiches. Beer by the bottle, too.
Media, PA also has lots of good options. If you go to the town's website (mediaborough) you can see an updated list of restaurants and links to their websites.
A Cut Above Deli on West Chester Pike is amazing. One of the best deli's in the city/outlying areas. If you want a true hoagie, get their italian, you will not be sorry. You can get there by taking the Broomall exit off of 476 ( By the way, definitely take I-95 to 476 and you will miss the nightmare that is the Schuylkill expressway ) and that will bring you right onto West Chester Pike. Head towards Broomall and it is about a five minute drive from 476.
This is tough b/c you say you don't want to stop in the city yet until you reach the VF area, you are in the city basically. My only recommendation is if you take 95N to 76W as your route to VF/Collegeville area, you go right past the Belmont Ave exit (off 76W). Manayunk is right off of this exit and a cute place to stop for lunch with several spots close together. Heading West, Belmont Ave exit to the Right. Turn Right and then take your first Right. You'll see several options. Manayunk is still considering philadelphia but maybe out from center city just enough that you will give it a shot. I don't have a specific recommendation for a lunch spot but check out the link below to see your options.
More info here: http://www.manayunk.com/
Continue up the Blue Rte 476 to Germantown Pike and take Germantown Pike East to any of these establishments. I recommend Lucky Dog Saloon, but lunch service ends at 3, resumes, 5 PM. Family run pub, unique specials, homemade desserts
Anyone else can comment on the locations from a previous post?
From the Boot (Italian) - Germantown Pk, Lafayette Hill
Caspian Grille (Middle Eastern) - Germantown Pk, Lafayette Hill
Lucky Dog Saloon (American) - Germantown Pk, Lafayette Hill
Cisco's (Bar, cheesesteaks) - Bethlehem Pk, Flourtown
Peperoncino (Italian) - Hector St, Conshy
I assume you are planning to take the Blue Route (I-476) north to I-76 west. With that in mind, I think Media or the Radnor/Wayne area would be logical places to consider. There have been some recent boards (or revived boards) about each. I am afraid I do not know what might be open for lunch on Saturday around there other than the Hotel Radnor and the Wayne Hotel restaurants. There might be an Iron Hill Brewery in Media but others should be able give you some solid suggestions.
***depending on your time, you should go to Italian Market & hit the festival, walk around for lunch (if you mean 5/17)!
Deli- Famous 4th Street
seafood-skip in Philly
Vietnamese- Vietnam in Chinatown, Pho 75 for Pho
walk around Reading Terminal Market (search other threads for specifics on RTM)