I've been using a Wonder Pot for a year and a half, mainly making cake and the occasional bread.  Recently my cakes have started baking unevenly, with one half of the pot completing the baking before the other half. I usually end up turning the pot 180 degrees when it is a little more than half done, in order to evenly bake. This was not an issue when I was first using it.   Anyone experienced with Wonder Pots know why this might start happening, and what can be done to fix it?  I have recently changed stovetops, and it is possible I'm not getting the flame height right, or the positioning (although it is pretty centered).  It was already used when I got it, so perhaps the metal disc is worn out and no longer distributing the heat evenly. (Does that even happen)?   You can see pictures of the top and bottom of my disc here. I'm not sure if corrosion or rust is the right way to describe it, but you can see that there is some kind of something on the disc, and it appears a little uneven. It doesn't seem all that different from the picture on wikipedia, though.     
With all dried beans, they should be cooked first. Lentils do remarkably well cooked as rice, which is why they're often paired with rice. A rice cooker set with just lentils, or your favorite pan-rice recipe should work. Lentils don't need to be cooked as long as other beans, so you shouldn't need to pressure cook them, or soak them, like you would other beans.  You can then sauté them in oil, if that's what you want to do. Frying (deep-frying) is not what I would expect with lentils; they sauté well, however. 