Toaster quesadillas are really easy. All you need are tortillas, cheese, and salsa. Melt the cheese on the tortilla, then spoon on the salsa, and you're done.
Pasta only requires you to boil some water and put the pasta in. Leaving it to cook for 10 minutes is usually good, give or take. Then you can add whatever you like to it. I usually eat it with butter melted by the food's own heat, and grated cheese. The pasta is often hot enough to melt sliced cheese, too, if you put the cheese on immediately after draining the pasta, then cover the food with a plate for a few minutes.
Rice is a lot like pasta, but trickier, because the rice needs to absorb the water it's cooking in. With white rice, I used to fry it in oil first (until the grains turned translucent), then boiled it in a covered pot for 20 minutes. That was kind of complicated, so now I just boil it covered for 10 or 15 minutes, with a little oil mixed in for flavor. If you do it the first way, you need just enough water in the pot to cover the rice. For the second way, you'll need more...about double the water to rice.
French toast is just bread dipped in eggs. You can cook it pretty much like grilled cheese, though the frying time is less, because grilled cheeses need to be practically burnt to get some good melting going. Add some milk to the eggs to make them thinner, and use a shallow bowl so the bread doesn't absorb too much liquid.