Green Bean Casserole W/ Sweet Peppers & Cheese

Rose Mary Mogan


This recipe came about because I forgot to buy a few items in my original recipe, so I compromised & used the ingredients I had on hand & my husband never knew the difference, he remarked how cheesy & good it was like always.

This recipe is very colorful, & could be eaten without the cheese sauce, once it is combined with the other veggies, but why when it taste so deliciously cheesy good. You can use a less fat milk or even Fat Free yogurt, but not skimping on the main ingredients in the sauce packs a lot of flavor & calories too. It is a once in a while type of indulgence, so enjoy.


★★★★★ 1 vote

10 or more depending on portion size
20 Min
30 Min


  • 2 lb
    fine frozen green beans
  • 1/2 lb
    fresh sliced mushrooms
  • 18
    baby carrots (sliced on the diagonal)
  • 1 medium
    red onion, chopped
  • 8-10
    mini sweet red peppers (cut into ringlets)
  • 6 Tbsp
    butter divided
  • 5 Tbsp
    wondra flour or use cake flour
  • 1 1/2 c
    heavy whipping cream
  • 2 c
    whole milk
  • 1 tsp
    each kosher salt, coarse black pepper, dried thyme
  • 1 1/2 c
    freshly shredded parmesan cheese
  • 1 c
    mild cheddar cheese shreds
  • 1 1/2 c
    french's fried onion rings
  • ·
    extra mini sweet red pepper ringlets reserved from above as garnish

How to Make Green Bean Casserole W/ Sweet Peppers & Cheese


  1. PREHEAT OVEN TO 375 DEGREES F. Spray a 9X13 size casserole dish with non stick cooking spray and set aside till needed.
  2. Using a large pot of hot water bring it to a boil and then drop in the frozen green beans and cook for about 4 minutes, then remove them with a slotted spoon into a large bowl of cold ice water, this stops the cooking process. Then drain completely until needed.
  3. Melt 2 tablespoons of butter with a tablespoon of olive or canola oil, then add in the sliced carrots, sweet red pepper ringlets, chopped red onion, & sliced mushrooms, sauté until tender about 6-8 minutes then add to reserved green beans and stir to blend together, leaving aside till needed.
  4. Next melt remaining butter in large skillet or pot, then add in flour forming a paste, and whisk with a whisk, then slowly add in the whole milk and heavy whipping cream, stirring until mixture thickens, then add in both cheeses, and stir until cheese melts. Then add in the green Bean mixture & the spices.
  5. Stir until green beans are mixed with cheese mixture.
  6. Pour into prepared casserole dish, & top with French fried onion rings, and reserved red pepper rings. Place in preheated 375 degree F. oven and bake for about 25 to 30 minutes until mixture is hot and bubbly.

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