Add the noodles. Stir in the uncooked egg noodles, pressing them down gently so they are mostly submerged. Try to keep them in an even layer for consistent cooking.
Cook the noodles. Re-cover and cook on HIGH for 20 to 30 minutes, or until the noodles are just tender (not mushy). Lift the lid once or twice to gently stir and press any dry noodles down into the liquid.
Finish & serve. Turn the slow cooker to WARM. Gently stir in the sour cream until the sauce is smooth, then sprinkle the shredded cheddar cheese evenly over the top. Cover and let the cheese melt for 5-10 minutes. Give it a gentle stir if you like, or leave the cheesy layer on top. Serve hot.
Leftovers keep well in the refrigerator for up to 3 days. Reheat gently with a splash of broth or milk if it seems too thick.
Variations & Tips
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For a Traditional Amish Touch: Swap half the sour cream for cottage cheese, stirring it in at the same time for extra body and tang.
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For Onion Flavor: Add 1 teaspoon of onion powder or ½ cup of very finely minced onion on top of the raw beef before pouring on the soup.
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To Add Vegetables: Scatter 1 to 1 ½ cups of frozen peas and carrots or mixed vegetables over the cooked beef just before stirring in the noodles; they’ll heat through as the noodles cook.
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For a Milder Casserole: Use mild Colby or Monterey Jack cheese instead of cheddar.
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To Lighten It Up: Use leaner ground beef and low-fat sour cream (though the texture will be slightly less rich).
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To Prevent Overcooked Noodles: On busy days, you can par-cook the noodles on the stovetop until just shy of al dente. Stir them in during the last 10-15 minutes of slow cooking, adding a splash more broth if needed.
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Slow Cooker Note: If your cooker runs hot or is larger than 6 quarts, keep an eye on the noodles and check them early to prevent overcooking.
