Break up spaghetti into little pieces. Take a good-sized pat of butter and add it with some olive oil (enough of the two together to coat the bottom) to a shallow-but-good-sized saucepan, or, as I do, your rice cooker(I love my rice cooker). Add some chopped-up garlic and/or onions if you want. Brown the spaghetti and your rice (should be about 2/3rds rice to 1/3 spaghetti) in the oil/butter.

Add broth in a 2-to-1 ration (1 c rice+spaghetti = 2 c broth, for instance), pop the lid on, turn the heat to simmer and wait about 30 min. DON'T TAKE THE LID OFF. Or, in a rice cooker, pour in the broth, close the lid and wait til it turns off on its own.

You can add chopped vegetables toward the end and they'll steam.