10 boneless, skinless chicken breasts
1 (8 ounce) can crushed pineapple with juice
1/2 cup granulated sugar
2 tablespoons lemon juice
1 teaspoon mustard powder

Preheat oven to 350 degrees F.

Combine the pineapple with its juice, sugar, lemon juice and dry mustard in a small bowl. Blend well.

Place chicken breasts in a lightly greased 9 x 13-inch baking dish. Spread the pineapple mixture over the chicken. Bake for 50 to 60 minutes.