Hello,
May need a bit more information about the pike. Size, species, tankmates, feeding schedule (x's per day), and what kind of pellets are you feeding your other fish?
I would suggest dropping everything in the tank at once..worms and pellets..the same spot for a couple of days in a row. Try to soften the pellets with a small amount of tank water.
Then for 2 or 3 days after that, only feed pellets. If your pike doesnt take the pellets, he'll see all of the other inhabitants eating, and a few times afterwards he should hit the pellets. He may spit them out, but he'll hit them.
After those 2-3 days, add some worms with the pellets for one feeding, dont want him to starve too long.
Then for 2-3 days only feed pellets. Be consistant with the place you put the food, and make sure you dont give in to the fish. Pellets are the best staple diet for fish.
If the pike will eat frozen krill or frozen mysis shrimp, it will be easier on you if you place the pellets in a small plastic cup and place the frozen food on top to let the taste of the good stuff soak into the pellets. If you can feed them softer pellets(softened by a little bit of tank water and frozen food sauce) it'll be easier for them to crush it up and eat it.
Good luck