Hearty snacks for a party serving mostly beer?

Do a variety of skewers. Cherry tomato, basil and mini mozzarella. Grilled kielbasa, cheddar and sour dough bread. Grilled chicken with grilled veggies. Shrimp, grilled mango and bacon. The varieties are endless. Many can be served cold, but all can be arranged earlier and grilled for just a second.

My go-tos are spiced nuts, a few dips (think: white bean or hummus, roasted red pepper, pea puree, carrot, guac, etc) served with toasted pita squares, cheese plate with various dried and fresh fruits, good potato chips, maybe a crostini, and good olives, to name a few.

I made the Spanish Trail Mix. It's awesome. I had an ice cold Widmer Hef with it. Also awesome. :0)

Scotch Eggs...boiled eggs wrapped in sausage (Jimmy dean mild is fine).
Make little ball and dent it and push in the peeled boiled egg and work the sausage around the egg so it's enclosed.
One pack of sausage will make about 6.

Then roll them in bread crumbs and bake for about 40 mins until the sausage is done and their brown. (Google baked scotched eggs).
Cut in half and serve with a mustard sauce.

The beer garden classic, Obatzda, a cheese spread that gets better the day after it is made (recipe at http://www.bavaria.by/b90f54d0-4849-4a0a-7842-09896237eaa1.html, radisheswith sea salt and butter, a good sourdough rye bread, thick chewy pretzels, a selection of good sausages like salami, Thuringer, landjaeger, and several kinds of cheese.

Toasted whole almonds tossed with orange zest and cumin (also toasted), cubed, hard cured chorizo and cubed manchego cheese. I found a recipe for this odd-seeming combo on epicurious not long ago - it intrigued me and sure enough was delicious! At the time I made it I remember thinking: man, this would be great for a beer tasting party!
Can make it a couple days in advance.

I would lean towards food that pairs well with your beer selections. If you have an assortment of beers, pair a small bite with each. Some suggestions:

IPA or Pale Ale- Sweet/Salty/Spicy is a good option here. Perhaps https://food52.com/recipes/246-spicy-shrimp. I like to make a raita to dip the shrimp in for those that like it a little more tame. Or you could riff on shrimp cocktail with a Thai or Vietnamese lean.

Porter or Stout- You could go with pretzel and mustard or a nice sausage "pig in a blanket" style paired with a good mustard.

Pilsner or Lager- Some kind of oyster. Search for oyster recipes on this site and you will find tons. On the half shell grilled/broiled with a compound butter would be great and it wouldn't scare the non-raw crowd away.

Wheat/Hefeweizen- Something along the salad line. Perhaps a skewered caprese salad. Or a crostini with a mild goat cheese and some other topping. I like to make a caramelized onion/garlic jam -https://food52.com/recipes/25277-goat-ricotta-crostini-with-spicy-onion-garlic-jam

Lambic/Fruit- Serve with a small bite of dessert. Mini cheesecakes, a neutral cracker topped with blue cheese and fig drizzled with honey or the same cracker and blue topped with a nice fruit preserve.

Thanks, all, these are good. I have been thinking about deviled eggs but haven't done them before and wasn't sure how labor-intensive they are. Unfortunately my afternoon is stocked with attending kid birthday parties and while we're usually up for a culinary challenge, this might not be the time.

Thanks, all, these are good. I have been thinking about deviled eggs but haven't done them before and wasn't sure how labor-intensive they are. Unfortunately my afternoon is stocked with attending kid birthday parties and while we're usually up for a culinary challenge, this might not be the time.

Green pea cilantro spread (recipe from the blog Chocolate and Zucchini: http://chocolateandzucchini.com/recipes/dips-spreads/green-pea-cilantro-spread-recipe/) with thinly sliced dense whole grain bread. It is delicious and the most amazing green color that doesn't dull at all.
A note on the recipe -- I steam frozen peas for about 5 minutes, while the recipe suggested 14 minutes which seemed way too long. I also like it with other herbs like mint and parsley in addition, and some lemon juice.

I love serving deviled eggs. I make several kinds and garnish each one with paprika, fresh herb sprig or a little square of pancetta. Roasted shrimp with a spicy dip are something that always get raves and are very easy. Bruschetta are also fun.

Sourdough pretzels with mustard come to mind. Did you search recipes? Bet you would find some delicious options.