Chicken and Shrimp Casserole

raw converted rice 1/2 Cup butter, melted 2 1/2 Cups chicken broth 4 Cups chicken, cooked and cut into 1-inch pieces 1/2 Pound button mushrooms, sliced 1/3 Cup soy sauce 1 Pound shrimp, shelled and deveined 8 Green onions 1/2 Cup almonds, slivered