This delicious casserole is an easy low carb dinner with green beans and ground beef in a delicious creamy sauce topped with crispy fried onion straws.
STEP 1: Preheat oven to 350 degrees.
STEP 2: To a Dutch oven or oven safe skillet add 1 tsp of olive oil and the onions. Cook the onions for about 3 minutes over medium-high heat. In the same pan, brown the ground beef. Drain the hamburger meat (as needed) and set aside.
STEP 3: Melt butter in the same pan over medium heat. Add flour and combine into a paste. Cook constantly stirring for one minute.
STEP 4: Add the half and half and beef broth. Whisk together and simmer until the sauce thickens for about 7 minutes.
STEP 7: Evenly spread the mozzarella and cheddar cheese in a single layer over the green bean mixture.
STEP 8: Sprinkle fried onion straws over the top of the casserole.
What kind of ground beef should I use?
Lean Ground Beef
Can I use fresh green beans?
You can used, fresh, canned, or frozen for this recipe. Canned greens will give a softer texture while fresh and frozen will have a bit more texture.