Heat oven to 325 degrees F. Combine oats, raisins, almonds and pumpkin seeds in a large bowl.
Combine agave syrup, butter, salt, cinnamon and allspice in a small saucepan. Heat over low heat until butter is melted, about 3 minutes. Whisk to blend, then pour over oat mixture in bowl. Stir to evenly coat pieces.
Spread mixture onto one large or two smaller rimmed baking sheets. Bake at 325 degrees F for 15 minutes. Stir and rotate pans (if using more than one). Bake an additional 15 minutes until mixture is golden. Transfer from pan to bowl or canister. Serve with fruit and milk or over yogurt.