Forgot to ask: If I find a recipe I like with white flour, can I substitute whole wheat flour for some of the white flour?

I have two that I make, one I just made, banana blueberry oat or banana oat muffins. But both call for buttermilk or yogurt, which is interchangable with buttermilk in a muffin recipe. I just made the banana blueberry ones for breakfast yesterday.

Here are my banana bread recipes, which don't call for yogurt/buttermilk.

Banana Oat Bread

1 1/4 cups unsiftrd flour (can use part whole wheat)
3/4 cup quick oats (not instant)
1/2 cup firmly packed brown sugar (can use 1/3 cup)
1 tsp. baking powder
1 tsp. baking soda
1/2 tsp. cinnamon
3 TBLSP vegetable oil
1/2 tsp. salt
2 eggs beaten (can use one egg and two egg whites)
1 cup mashed bananas (2 large ones)
1/2 cup maple syrup (I guess you could use brown sugar, here, I dunno, I always have maple syrup on hand, I love it!)

Preheat oven to 350 degrees, grease loaf pan.
together banana, eggs, oil, sugar, syrup and oats.
Mix dry ing. together. Add to wet ingredients and mix well.
Turn into a 9x5 greased loaf pan. Bake at 350 until a wooden pick inserted in the middle comes out clean, at least 50 minuntes. Cool at least 10 min. before slicing.
Lpink's note: the more you follow the parentheses directions the healthier the bread becomes.

Banana wheat Quick Bread

1 1/4 cup unbleached flour
1/2 cup whole wheat flour
3/4 cup sugar (or 2/3)
1 tsp. soda
1 tsp. salt
1 1/2 cups (3 med.) mashed bananas
1/4 cup margarine or butter softened (you probably could use some kind of vegetable oil here)
2 TBLSP orange juice
1/4 tsp. lemon juice, if desired
1 egg (or 2 egg whites)
1/4 - 1/2 cup raisins

Preheat oven to 325 degrees.
Bake in a greased 9x5 or 8x4 inch pan. Flour the bottom of the pan.
Combine wet ingredients. Combine dry ing. Mix wet and dry until well mixed. Bake at 325 for 60-70 min until toothpick inserted in center comes out clean. Cool before slicing.

I've made both breads and gotten compliments on them. They are definately not as light as the traditional higher fat quick breads though. You need to test them for doneness and they often need to bake a little longer, but depends on how your oven works.

Many thanks for the recipes. I will print them out.