1 (7 1/4 oz.) box macaroni and cheese dinner
1 (12 1/2 oz.) can tuna, drained and chunked
1/2 c. shredded cheddar cheese
1 c. frozen green peas
1 tsp. dried Italian seasoning
1 tbsp. grated Parmesan cheese
1/4 tsp. garlic powder (optional)

Prepare macaroni box as directed on box. Mix in remaining ingredients except Parmesan cheese. Pour into a 1 1/2 quart microwaveable serving dish. Cover with plastic wrap. Microwave on high for 2 minutes. Stir casserole and continue on high for 2 1/2 to 3 1/2 minutes or until cheese is melted and mixture is heated through. Sprinkle with Parmesan cheese.