Cheese Filled Coffee Cake
["1 pkg. yeast", "1/4 c. warm water", "1 tsp. sugar", "1 egg, beaten", "2 c. flour", "1/4 tsp. salt", "3/4 c. margarine", "2 (8 oz.) pkg. cream cheese", "1 c. sugar", "1 tsp. lemon juice", "powdered sugar"]
["Mix yeast, water and 1 teaspoon sugar.", "Let stand for 10 minutes.", "Add egg.", "Cut margarine into flour and salt.", "Mix well. Add yeast mixture.", "Divide into 2 balls.", "Roll each into an 8 x 10-inch rectangle."]
["yeast", "warm water", "sugar", "egg", "flour", "salt", "margarine", "cream cheese", "sugar", "lemon juice", "powdered sugar"]