Broccoli Hamburger Casserole
Submitted by: SANDR2
 "Every time, my kids will request this dish over any others. It is very delicious! Try it for yourself." 
Original recipe yield: 8 servings.
Prep Time:15 MinutesCook Time:1 Hour 15 MinutesReady In:1 Hour 30 MinutesServings:8 (change) 

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INGREDIENTS:
2 (16 ounce) packages frozen broccoli 
2 pounds ground beef 
1 (8 ounce) package fresh mushrooms 
1 large onion, chopped 
salt to taste 
ground black pepper to taste 
2 (10.75 ounce) cans condensed cream of celery soup 
1 (16 ounce) container sour cream 
1 (16 ounce) package shredded Monterey Jack cheese 

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DIRECTIONS:
Preheat oven to 350 degrees F (175 degrees C). Prepare the broccoli according to package directions. 
In a skillet over medium heat, mix the ground beef, mushrooms, and onion. Cook until beef is evenly brown; drain grease. Season with salt and pepper, and mix in cream of celery soup and sour cream. Continue cooking until heated through. Transfer to a medium baking dish, and evenly layer with broccoli. Top with cheese. 
Bake 1 hour in the preheated oven, until bubbly and lightly brown.