They're a little young for that. Solid food should start being introduced at about 3 1/2 week, and they usually start to wean at about 4 weeks plus.
I would suggest instead some KMR. You can put some on a dish or very shallow bowl and bring them to it to lap at it. Maybe put a drop on your finger and then their lips to give them the taste. Or you can even supplement them by bottle feeding them.
The first litter I cared for was a Mom with 6 kittens (7 actually, but one died shortly after from internal abnormalities (I ran them all to the vet as soon as the kitten died). Since the Mom had been a stray and almost starved to death when I found her (she literally came into the house, ate, lay down and had her kittens). Surprise!
Since she needed to be built up herself and was not up to caring for 6 kittens (though she did her best) twice a day I would bottle-feed the babies with KMR (morning and evening) and they got the rest from Mom. Foir me and them, this seemed to work out fine.
Two of the bigger ones really weren't too interested, but being the biggest they got what they needed from Momma. The rest really enjoyed it and would literally line up. One of them (who I named Mad Dog and he was so cute the vet's assistant decided to keep him the minute she saw him) loved it so much if I didn't do him first, he'd scream his head off, so I'd do him first, then he'd sit and meow until I finished the others, and he'd have to have a second turn or he'd scream again, even if he wasn't hungry. Even a few more slurps and he was happy. I stopped bottle feeding them as soon as they started to wean, which was sometime during their 4th week (I start putting down solid food for them beginning at the 4th week for when they and mom are ready).
I actually wanted to keep him, but knowing he was going to as good a home as he possibly could go to, I gave him to her and ended up keeping Fuzz, who was never anything but a joy in my life.
They still nursed from Mom, and everyone started to wean at about 4 weeks, and for me this solution was perfect.
I do think however, they need the nutrients they would get in KMR at this age that they wouldn't get from canned food.