Slow Cooker Chicken Spaghetti - Fail (unless you love onion)

It's not often I have a recipe fail. I tend to pick my recipes carefully according to what my family will eat and what I know I can cook. I'll occasionally push my skills with good result. Even though slow cookers are easy, I'm new to these recipes and slow cooking is uncharted territory. I feel this recipe failed for two main reasons.
1) WAAAAY too much onion. I followed the recipe fairly exactly and I thought the onion would cook down more. It didn't. Every single bite had onion in it. Every.One. So unless you LOVE onion, reduce or cut it out.
2) I didn't like that this recipe required already cooked chicken and pasta. This would be a good leftover type meal - where you have leftovers from other nights and combine them for a new meal. Not much of a time saver when you have to cook chicken and pasta prior to using the slow cooker

Crock-pot Chicken Spaghetti

1 lb cooked chicken, diced
1 lb package of spaghetti, cooked and drained
1 medium onion, diced
2 cans cream of chicken soup
1 can Rotel (canned diced tomatoes)
16oz Velveeta, cubed
1/2 cup chicken broth
Salt and pepper to taste

MODIFICATIONS - when I made this recipe I made 3 modifications 
1) Macaroni instead of spaghetti
2) 8oz of Velveeta (I did't buy the right one) and 1 cup shredded cheddar cheese
3) 1/2 cup water instead of broth (I didn't want to open a whole carton for just 1/2 cup)

Dump everything in the crockpot, give it a stir to combine it all, and cover.  Cook on low about 1 1/2 to 2 hours. 


If I ever made this recipe again I'd cut the onion completely and use a little green onion as a garnish at the finish for colour and flavour. The flavour was bland, but it might have just been overpowered by onion. I'd also probably add some mustard or spice into the mix to kick things up a bit. Maybe I'll try this again, but it won't be in the regular rotation since of the extra pre-cooking required. Even the Munchkin didn't like it and he'll eat anything that resembles Mac and Cheese.