easy gumbo w/ shrimp

Ingredients

• 1 stick butter
• 1 cup chopped onion
• 1 cup chopped celery
• 1 large green bell pepper, chopped
• 1 teaspoon minced garlic in olive oil
• 2 tablespoons all purpose flour
• 1-1/2 teaspoon chili powder
• 1/2 teaspoon salt
• 1/2 teaspoon cayenne pepper
• 2 cans diced tomatoes w/ chilis, undrained
• 1 cup frozen okra, thawed
• 1 cup water
• 1 pound lg shrimp, peeled, deveined