Vegan Summer Fruit Crisp

This is a nice summer dessert. We have given peaches and blueberries, a combination we personally like, but would it work with almost any tree fruit or berry combination.  The perfect baking dish for this is available here
Ingredients:
For Topping:

• 1/4 cup oats
• 1/4 cup chopped nuts (walnuts, almonds, or pecans)
  
• 1/4 cup flour
• 1/2 cup brown sugar
• 1/ tsp salt
  
• 1/2 tsp. cinnamon
  
• 1/3 cup canola oil

For Filling:

• Two medium peaches
• 1/4 cup blueberries
• 2 tsp corn starch dissolved in 4 tbsp water
  
• Juice of 1/2 lemon
• 1/4 cup sugar   (add up to 1/4 c. add'l for a sweeter filling)
  

Preheat oven to 375 degrees. Combine ingredients for topping and set aside. Peel and pit peaches. Slice - about 16 per peach. Combine in bowl with other ingredients. Pour into lightly greased 16 oz. au gratin or baking dish. Crumble topping over top. Place in oven with baking pan on lower rack below to catch drips. Bake for one hour.