Activate Yeast: In a bowl, combine warm water, yeast, and honey. Let sit for 5-10 minutes until foamy.
- Mix Wet Ingredients: In a large bowl, mix pumpkin puree and olive oil.
- Mix Dry Ingredients: In another bowl, whisk together whole wheat flour, bread flour, oats, sunflower seeds, flaxseeds, cinnamon, nutmeg, and salt.
- Combine All: Add yeast mixture and dry ingredients to the pumpkin mixture. Stir until a dough forms.
- Knead Dough: Knead on a floured surface for 8-10 minutes until smooth and elastic.
- First Rise: Place dough in a greased bowl, cover, and let rise in a warm place until doubled in size, about 1 to 1.5 hours.
- Shape and Second Rise: Punch down dough, shape into a loaf, and place in a greased loaf pan. Cover and let rise for another 30-45 minutes.
- Bake: Preheat oven to 375°F (190°C). Bake for 35-40 minutes until golden brown and hollow sounding when tapped.
- Cool and Serve: Remove from pan and cool on a wire rack before slicing.