Vegan Italian Casserole

Ingredients:

• 1 1/2 cups ground beef substitute
• 1/4 cup chopped onions
• 1/2 tablespoon olive oil
• 1 cup of spaghetti sauce
• cup of shredded vegan chedder soy cheese (I used Follow Your Heart Vegan Gourmet)
• 3 tablespoons vegan sour cream
• 3 triangles of uncooked Pillsbury Refrigerated Crescent Rolls
• 1 tablespoon margarine, melted
• 1/2 tablespoon nutritional yeast