2 cups diced rhubarb (about three stalks)
1 cup quartered strawberries
1 golden delicious apple, diced
1 cup sugar
1 T flour
1/2 cup old fashioned oats
1/2 cup flour
1/2 cup brown sugar
1 tsp cinnamon
4 T cold butter, cut into chunks
Preheat oven to 350 degrees.
Toss the diced rhubarb, strawberries and apple in a large bowl with the flour and granulated sugar.
Spray an eight inch square dish with cooking spray and pour in the fruit.
In the same bowl you tossed the fruit it, combine the oats, flour, brown sugar and cinnamon. Using your fingers, work the butter in until it resembles coarse sand (you still want some tiny butter chunks here though---don't work it in so much that it becomes cornmeal/pie dough consistency).
Pour the topping on the fruit and bake for 45 minutes, until golden.