Thaw strawberries
Drain juices from strawberries and pineapple chunks
Reserve the juices
Add enough of the pineapple juice to the strawberry juice to make 1 cup
Mix 2 Tbsp of brown sugar with cornstarch in a small pan
Over medium heat, blend in 1 cup of the juice mixture until the mixture thickens (about 5 minutes)
Remove from heat and combine with strawberries and pineapple in a casserole dish
In separate bowl, mix togetehr oats, 1/4 C brown sugar and flour
Cut in the margarine or butter until crumbly
Sprinkle this over the fruit mixture
Sprinkle with cinnamon
Bake approximately 30 minutes at 350°
