Muffins are very useful, they don't need cutting and they travel well. Here are some recipes and variations. Rice flour baked goods have a "subtle" flavour, which is sort of like real estate speak for bland and boring. It needs lots of cinnamon, allspice, ginger and other spices and herbs to give it tastiness. You will note that I use very little sugar, I prefer flavour to sweetness plus I am cooking for a diabetic. I refuse to use artificial sugar, besides tasting awful, we don't need more chemicals in our food. I don't use baking powder due to the allergies in the house, instead I use a combination of baking soda, cream of tatar and acid (vinegar or yogurt) as leavening. You can replace the white rice flour with brown rice. A hand full of GF quick oats (Only Oats)also gives more texture and chewiness. Note that GF baking spoils very quickly. Your best bet is to freeze most of it and defrost as needed.
Muffins don't have to be sweet. These savory muffins work well with bean soup or a sharp cheese.