Preheat the oven to 375°F, and grease a 2 quart baking dish.
Bring a large pot of salted water to a boil, and add the frozen vegetables. Cook for 1 to 2 minutes. Drain and place the vegetables in a large, clean bowl.
20 ounces frozen mixed vegetables
Heat a medium skillet over medium heat. Add the onions and butter, and saute for 3 to 5 minutes until the onions begin to soften. Remove from heat.
½ cup white onion, 1 tablespoon unsalted butter
Combine the sauteed onions, cream of chicken soup, water chestnuts, mayonnaise, garlic powder, and salt. Add the cream of chicken soup mixture to the vegetables and stir to combine then mix in the cheddar cheese.
10 ½ ounces cream of chicken soup, 8 ounces water chestnuts, ⅓ cup mayonnaise, ½ teaspoon garlic powder, ½ teaspoon salt, 1 cup sharp cheddar cheese
Transfer the mixture to the prepared baking dish. Top with crushed crackers, and drizzle with melted butter.
Bake uncovered for 15 to 20 minutes or until the filling bubbles and the crackers are browned.
Serve warm! See post for tips, FAQs, and storage options.
Notes
*The calories listed are an approximation based on the ingredients in the recipe card and a serving size of 1 cup of casserole. Actual calories will vary.*For more information, tips, and answers to frequently asked questions, please refer to the post.
Nutrition Facts
Mixed Vegetable Casserole
Serving Size
1 cup
Amount per Serving
Calories
351
% Daily Value*
Fat
23
g
35
%
Saturated Fat
9
g
45
%
Trans Fat
0.4
g
Polyunsaturated Fat
7
g
Monounsaturated Fat
6
g
Cholesterol
36
mg
12
%
Sodium
773
mg
32
%
Potassium
270
mg
8
%
Carbohydrates
29
g
10
%
Fiber
4
g
16
%
Sugar
3
g
3
%
Protein
8
g
16
%
Vitamin A
3989
IU
80
%
Vitamin C
9
mg
11
%
Calcium
153
mg
15
%
Iron
2
mg
11
%
* Percent Daily Values are based on a 2000 calorie diet.