Rice and beans - make in the rice cooker, add some spices, maybe a bit of tomato sauce, and top with some grated cheese.
Steamed vegetables with parmesan cheese and a squeeze of lemon, or lemon, olive oil and dill.
Get some of the Japanese rice toppings - it comes in small jars and is a mix of spices, dried herbs, dried seaweed and toasted seaweed, and is lovely on top of steamed rice.
If you can get the cans of mixed beans they're great for smaller servings. Rinse and toss with some chopped onion and celery, some vinegar, olive oil and spices - enough bean salad for two meals.
Some of the Asian noodles work much better with a microwave than classic pasta - some just need boiling water poured over them, others have a short cooking time.
Get fresh udon (thick Japanese noodles) - you can get it in single serve sealed packages. Heat them in some chicken stock in the microwave with some sliced mushrooms and green onions and a bit of soy sauce - quick Japanese style soup.
Get some Tom Yum paste (Thai Hot and Sour soup), which is often sold in jars. A tablespoon of that, some diced vegetables (carrot, onion, celery, mushrooms, cauliflower, broccoli, green beans, peas corn), a little time in the microwave and you have an awesome vegetable soup.