cream of cheese and rice with veggies

Ingredients

• 2 tablespoons vegetable oil
• 1 pound chicken breast halves, skinless and boneless
• 1 1/2 cups thinly chopped onion
• 1 - 8 ounce package mushrooms chopped
• 1 medium carrot shredded
• 1 tablespoon minced garlic
• 1/2 cup white rice
• 1 - 14 ounces chicken boulion soup prepared
• 1 cup water
• 1/2 teaspoon ground black pepper
• 2 - 12 ounce cans evaporated milk
• 2 tablespoons all purpose flour
• 4 cups fresh spinach copped
• 3 tablespoons lemon juice