3-2-1 Penguins!, there are a few references to VeggieTales.
In Trouble on Planet Wait-Your-Turn, Michelle says that she and Jason stopped at Burger Bell on their way to the cottage, which is a reference to His Cheeseburger. Later on, Larry the Cucumber makes a cameo appearance as a vacuum cleaner.
Jason mentions plunger-head doesn't qualify as a superpower, which isn't actually true, considering Larry-Boy has this ability. In the same episode, one of the comic books Jason mentions that Kevin can read is Minnesota Cuke.
The way Michelle got scared when watching a scary T.V. show is similar to how Junior Asparagus got scared before, in Where's God When I'm S-Scared?.
Lance the Turtle is played several times.
Music from The Ballad of Little Joe and Moe and the Big Exit was used.
Jason mentions The Pecking, which is a reference to Larry-Boy and the Rumor Weed, while playing pretend that there's a 40 foot chicken.
In Space Surfin' Superstar!, Kevin mentions Larry the Cucumber.
When the moon rock exploded, it turned into a popcorn meteor.
In the song, Shining Star Swing, Bob the Tomato peeks through the Comet Lounge window