Preheat the oven to 350°F (175°C).
In a large mixing bowl, combine 2 cups rolled oats, 2 tablespoons chia seeds, 2 tablespoons ground flaxseeds, 1/2 cup protein powder, 1/2 cup chopped almonds, 1/4 cup pumpkin seeds, and 1/2 teaspoon cinnamon (optional).
In a small saucepan, melt 1/4 cup coconut oil over low heat. Remove from heat, then stir in 1-2 teaspoons stevia or monk fruit sweetener and 1 teaspoon vanilla extract.
Pour the wet ingredients over the dry ingredients and mix until fully combined.
Spread the granola mixture evenly onto a baking sheet lined with parchment paper.
Bake for 20-25 minutes, stirring halfway through. Keep a close eye on it towards the end to prevent burning.
Once baked, remove from the oven and allow it to cool completely before storing.
Store in an airtight container for up to two weeks or freeze for longer storage.