Spanish Rice

Dad's recipe...I'm still working on perfecting it to taste just like his, but have not yet been successful.  The goal for this is patience...

Ingredients
1 1/2 cups long grain rice, uncooked
1/4 cup Canola or vegetable oil.
1 medium Spanish/yellow onion, finely diced
2 cups frozen peas and carrots (no corn)
3 1/4 cups chicken broth
1/2 cup tomato sauce
1/2 teaspoon salt
3/4 teaspoon garlic powder

Preparation

1. Using a 3 quart saucepan, brown the rice in the oil.
2. Add onion to rice and saute for 1-2 minutes.  
3. Add remaining ingredients and bring to boil while stirring.
4. Lower heat and cover saucepan.
5. Simmer for 22 minutes, remove from burner and let stand, covered for 5 minutes before serving.