Using a mixer with a dough hook, mix together the yeast, 3/4 cup warm water and 1 cup whole wheat flour. (If you've never made bread before or you're not sure your yeast is good, let this mixture rest for 5 minutes once mixed. It should be bubbly)
Next, add 1 1/2 cups warm water and 2 cups of the whole wheat flour and mix well. Now add the gluten, oil, honey and salt and mix well.
Finally, add the remaining 1 1/2 cups of flour and 1 cup oats and mix well.
Dough shouldn’t be sticky at this point and should’ve pulled away from the sides of the bowl. If it's still sticky, add 3 TBSP whole wheat flour and mix again.
Allow the dough to knead/mix for about 5 minutes in the mixer.
Spray a large mixing bowl with cooking spray, add dough and cover with damp towel. Set in warm place to rise until doubled (usually about an hour).
Spray 2 bread pans with cooking spray and preheat the oven to 350F.
Punch down the dough to remove all air bubbles and divide into 2 equal portions. Flatten each portion and roll up like a towel, pinching seam together. Flip over (so seam is on the counter), form into loaf shape and place each loaf in its' own pan. Cover with damp towel and let rise for 20 minutes.
Bake for 30 minutes. If you tap the top of the bread, it should sound hollow when tapped when it's done.
Let cool for a few minutes, then turn out onto cooling rack. Try not to eat it all at once!