Cheese – Why does the Velveeta queso dip get clumpier the longer it stays in the microwave

Microwaved eggs was probably one of the first things that I learned to cook -- I don't know I'd consider it an 'omlette' necessarily -- it was just a bowl, oiled, broke an egg in it, a touch of milk or water, mixed, and then microwaved.

When you're rushing to get out the door in the morning, it's a dead simple breakfast; I was recently out of town, and the place I was getting my breakfast in the morning (a bagel joint) did basically the same thing -- put a laddle of egg into a container, microwaved, put it on the bagel, and you were out the door.

Personally, I'm of the opinion that velvetta melts at a low enough temp that if you're using the pre-sliced stuff, you'd probably be okay just cooking the egg, putting the cheese-food on it, leave it in the microwave (off) for ~30 sec, and it'll have started to melt.

(but then again, I like to know cheese is there ... not be some runny molten filling that runs out when you're eating something, so I don't want it too melted)

This is because you are using a microwave. In theory, if you could turn off the microwaves in the microwave oven, you could use the convection function to bake things. In practice, we have had several questions which indicate that this is not how convection microwaves work. They keep nuking your dough, making it inedible. In your case, they are cooking all the moisture locally, resulting in mini-steam-explosions which create blisters, and a dried out, hard and crispy dough.

I am sorry, but there is no way you can bake with a microwave, not short pastry, and not other things. One exception might be quickly eaten "microwave cupcakes" which don't have much flour to start with and are baked for a very short time. I have seen people claim that they work, but never actually tried them.

For baking, you need a non-microwaving oven. The cheapest solution is a toaster oven with a 30x30 cm inner size, they are somewhat trickier to use than a big oven, but good enough for a small budget.