First, lets figure out what yams and sweet potatoes are. What we often see in the stores here that are marketed as yams are, in fact, orange sweet potatoes. Yams are longer, thinner, and often used in African cooking. Orange sweet potatoes are more moist than their counterparts, and make a great alternative to regular potato. Sometimes I'll chop up some yukon gold potatoes and throw them in the bowl as well. We love these alongside eggs, meats, or in any place where you'd normally serve roasted potatoes. You can also get a little creative with the seasonings and add any type of seasoning you might with roasted potatoes such as sprigs of rosemary or thyme.
Measurements aren't so important here, it's the method that counts.
1. Just take some yams and/or russet potatoes. Peel and chop into 1/2 inch pieces.
2. Toss in a bowl with salt, pepper, a bit of paprika, and a drizzle of olive oil.
3. Heat the oven to 375 F.
4. Put a baking sheet in the oven to get nice and hot.
5. When the pan is hot, toss the yam mixture on the pan and stick it in the oven.
6. Make sure to stir it, move the potatoes around so that they don't stick to the pan, and get evenly browned on all sides. It should take about 20 minutes for the bites to be browned and cooked through.
Enjoy with ketchup.