Bump up the flavor by adding 1 teaspoon of vanilla extract (drizzle it around the pineapple).
If you can’t find crushed pineapple, you can use 2 (20 ounce) cans pineapple tidbits in pineapple juice instead. If you can only find canned crushed pineapple in heavy syrup (instead of in pineapple juice), you can use that and simply omit the brown sugar.
If adding chopped pecans, add them in with the brown sugar in step 3.